Let me tell you a
story…
A study about the effectiveness of narrative advertising on the
creation of brand memory structures within consumers’ minds
.University of Amsterdam Graduate school of Communication Master track: Persuasive Communication Author: Sanne Houterman Student number: 10615466 Master’ thesis supervisor: Ewa Maslowska 1st of February 2019
Table of Content
TABLE OF CONTENT ... 2 ABSTRACT ... 3 ACKNOWLEDGES ... 4 INTRODUCTION ... 5 THEORETICAL FRAMEWORK ... 8BRAND KNOWLEDGE REFLECTED BY BRAND MEMORY STRUCTURES ... 8
Categorizing the nodes in the brand memory structure ... 9
Benefits of strong brand memory structures... 10
BUILDING IMPLICIT AND EXPLICIT BRAND MEMORY STRUCTURES ... 11
Different ways to process information ... 11
Consumers’ attention towards advertising ... 11
Acquiring implicit and explicit memories ... 12
Advantages of implicit learning and implicit memory ... 13
NARRATIVE INFORMATION PROCESSING ... 14
Narrative transportation ... 15
RESEARCH METHOD ...19
RESEARCH DESIGN ... 19
SAMPLE & DATA COLLECTION ... 20
STIMULI MATERIAL ... 20 PROCEDURE ... 20 Pre-test ... 20 Experiment ... 21 MEASURES ...22 Mediator ... 22 Moderators ... 23 Dependent variables ... 26 Control variables ... 30 RESULTS ...31 HYPOTHESIS 1 & 2 ... 31 HYPOTHESIS 3 ... 33
New ‘Narrative transportation (total)’ measure ... 34
HYPOTHESIS 4 ... 36
HYPOTHESIS 5 ... 36
HYPOTHESIS 6 ... 39
DIRECT EFFECTS OF ADVERTISING STRATEGY ON BRAND KNOWLEDGE ... 40
DISCUSSION & LIMITATIONS ...41
APPENDIX 1 – DEVELOPMENT STIMULI MATERIAL & RESULTS PRE-TEST...44
APPENDIX 2 – TABLES & RESULTS MEASURES ...49
APPENDIX 3 – PROCEDURE & DESIGN IAT ...51
APPENDIX 4 – RESULTS H3, H4, H5 AND H6 ALTERNATIVE ANALYSIS ...56
APPENDIX 5 – TABLES & FIGURES RESULT SECTION ...67
APPENDIX 6 – SURVEY FLOW & SURVEY QUESTIONS ...70
Abstract
In order to build a strong brand and increase consumer-based brand equity, the
main goal of advertising should be to increase brand knowledge by building strong brand memory structures within consumers’ minds. But, little is known about the most effective advertising strategy to build brand memory structures and thus to
increase brand knowledge within consumers’ minds. In this article we investigated the effect of narrative advertising versus nonnarrative advertising on consumers’ brand
knowledge, with the role of narrative transportation as a mediator. Brand knowledge
was operationalized as two dimensions, namely brand awareness and brand image.
Brand awareness was measured with brand recall and brand recognition. Brand image
was measured with the quantity and quality of explicit brand associations
(operationalized as the number, strength, favourability and uniqueness of explicit
brand associations) and implicit brand associations (operationalized as the strength &
favourability of implicit brand associations).
Results showed a strong positive relation between a narrative advertising
strategy and narrative transportation. Subsequently, narrative transportation had a
positive relationship with brand recall, brand recognition, the number and
favourability of explicit brand associations, and the strength and favourability of
implicit brand associations. These results therefore strongly indicate that narrative
advertising is an effective tool to create or enhance both implicit and explicit brand
memory structures and thus brand knowledge within the consumers’ minds. These
finding can be of great importance to the fields of education, health care and
communication. Therefore, more research into the topic of ‘narrative communication as a tool to build memory structures’ is highly necessary.
Acknowledges
I would first like to thank my thesis supervisor dr. Ewa Maslowska of the
University of Amsterdam. Professor Maslowska was always there to brainstorm with
me, whenever I experienced trouble with my writings or data analyses. This help was
especially useful for the parts of the thesis in which I had little to no experience, such
as the implicit association test, the repeated-measure ANOVA analyses and the
logistic regression analyses. Thank you for keeping me motivated during the entire
process.
Furthermore, I would like to thank Gijs de Beus (Head of Strategy), Rogier
Heijning (Creative Director) and Felicia Spans (Junior Creative) of the creative
agency Lemon Scented Tea. Thanks to the expertise of Gijs and Rogier I was able to
create stimuli material for the narrative condition, which moved the hearts of my
participants and resulted in high levels of narrative transportation. Gijs also helped me
out by brainstorming with me, when I was stuck during the research process. I also
want to thank Felicia for helping me out with her editing skills, by creating the two
commercials of the experimental manipulations. The results of this thesis confirmed Lemon Scented Tea’s philosophy; you can indeed ‘create brands with the power of
Introduction
Consumer-based brand equity is widely used to measure the strength of a
brand (Agarwal & Rao, 1996; Keller, 1993; Romaniuk & Nenycz-Thiel, 2013). Keller
(1993, p 1) defined consumer-based brand equity as “the differential effect of brand
knowledge on consumers response to the marketing of the brand”. Brand knowledge
is reflected by the number and strength of the brand associations within the brand
memory network of consumers (Keller, 1993). Having a strong brand has numerous
benefits for companies. A strong brand improves consumers’ perceptions of product
performance and increases customer loyalty (Hoeffler & Keller, 2003). Furthermore,
a company with (a) strong brand(s) is less vulnerable to competitive marketing
actions, has larger margins and its customers respond more inelastic to product price
increases (Hoeffler & Keller, 2003).
In order to build a strong brand and increase consumer-based brand equity, the main
goal of advertising should thus be to increase brand knowledge by building strong
brand memory structures within consumers’ minds (Romaniuk, 2013). It is therefore
extremely important for marketers to know what kind of advertising strategy is most
effective in creating brand knowledge within consumers’ minds.
One advertising strategy that could be effective in increasing brand knowledge
is narrative advertising. According to Chang (2009), advertising takes either a
narrative or a nonnarrative form. A narrative advertisement persuades consumers by
telling a story and is therefore often called storytelling (Chang, 2009). The
advertisement has one or multiple characters that pursue a certain goal, and they have
specific means to reach that goal (Kim, Ratneshwar, & Thorson, 2017). A
nonnarrative advertisement provides product information in a factual manner. It often
contains only the product attributes and/or product benefits. Prior research found three
First of all, narratives are a natural way for people to process, understand and
store information (Adaval & Wyer, 1998; Bruner, 1991). Most of the social
information people acquire in their daily lives takes the form of narratives (Adaval &
Wyer, 1998). People create stories to organise their experiences, create order in
presented information, and explain unexpected events (Bruner, 1991; Escalas, 2004a;
Heider & Simmel, 1946; Mcadams & Mclean, 2013). This tendency of humans to use
narrative as a way to understand the world and learn new concepts is used in narrative
advertising.
The second benefit of narrative advertising is narrative persuasion. Prior
research found that when people consume and process a story, they engage in
narrative transportation (Chang, 2009; Escalas, 2004a; Green & Clark, 2013; Hamby
& Brinberg, 2016; Lee & Leets, 2002; Phillips & McQuarrie, 2010; Shen, Sheer, &
Li, 2015; van Laer et al., 2012). Narrative transportation is “the phenomenon in which
consumers mentally enter a world that a story evokes” (van Laer et al., 2012; p. 797).
Narrative transportation leads to narrative persuasion, which are enduring persuasive
effects (van Laer et al., 2012). Prior research stated that narrative persuasion increased consumers’ affective responses (Chang, 2009; Escalas, 2004; Moore & Homer, 2008), increased consumers’ product evaluations (Polyorat, Alden, & Kim, 2007), decreased
advertising intrusiveness (Wang & Calder, 2006), increased advertisement and brand
attitude (Lundqvist, Liljander, Gummerus, & Van Riel, 2013; Wentzel, Tomczak, &
Herrmann, 2010), increased willingness to pay for the brand (Lundqvist et al., 2013),
increased donating money to charities (Barraza, Alexander, Beavin, Terris, & Zak,
2015), and led to story consistent beliefs (Green & Brock, 2000; Slater & Rouner,
2002). Narrative transportation and persuasion are thus interesting processes for
The third benefit of narrative advertising is that it can be processed effectively
with little attention of the consumer. Prior research states that consumers pay low
levels of attention to advertising (Heath, 2001). The advantage of narrative
advertising is that the brain processes stories even when the brain is in rest and is not
actively working (Dehghani et al., 2017; Spreng, Mar, Kim, 2009). So even if
consumers do not pay attention to narrative advertising, their brains will
unconsciously process the presented information and still create or strengthen brand
memory structures.
These three advantages of a narrative form give us reason to believe that
narrative advertising might be an effective strategy to increase consumers’ brand
knowledge. Still little is known about the influence of narrative advertising on
creating or enhancing brand knowledge. Prior research on narrative advertising
focussed on narrative information processing (Adaval & Wyer, 1998; Chiu, Hsieh, &
Kuo, 2012; Escalas, 2004; Kim, Ratneshwar, & Thorson, 2017; Lang, 1989; Lien &
Chen, 2013), narrative transportation and persuasion (Ching, Tong, Chen, & Chen,
2013; Green, 2004; Kim, Lloyd, & Cervellon, 2016; Lee & Leets, 2002; Phillips &
McQuarrie, 2010; Polyorat et al., 2007; Shen et al., 2015; van Laer et al., 2012; Wang
& Calder, 2006) and emotional effects of narrative advertising (Barraza et al., 2015;
Boller & Olson, 1991; Hamby & Brinberg, 2016; Mattila, 2000; Zambardino &
Goodfellow, 2007). However, little is known about the effects of narratives on
information storage & memory. The few studies that did look into the effects of
narratives on memory, found that chronological presentation of events (Adaval &
Wyer, 1998; Lang, 1989), the story gist (Delgadillo, 2004), and a narrative form had a
positive effect on brand and story recall (Laer et al., 2012). Furthermore, van Laer et
al. (2012) found that consuming narrative advertising leads to story consistent beliefs,
But, there still exists a large research gap about the effectiveness of narrative
advertising on creating and enhancing brand knowledge. Therefore, this study
investigated the effect of narrative advertising on creating brand knowledge by
creating brand memory structures. This study will answer the following research
question by conducting an experiment:
RQ: What is the effect of narrative advertising versus nonnarrative advertising on consumer’s brand knowledge?
Theoretical framework
Brand knowledge reflected by brand memory structures
As stated in the introduction, consumers’ brand knowledge, and thus their
brand memory structures, are extremely important factors to build successful and
profitable brands. The Associative Network Theory of Memory (ANTM) states that
memory consists of nodes that hold information and/or concepts. These nodes are
connected with each other through links that vary in strength. When two or more
concepts are linked with each other they make up a network of associative
information. When a consumer is exposed to a brand in a specific context, links in
memory can be created or reinforced between concept nodes (brand associations) and
the brand node (Keller, 2003). A brand is here defined as “a name, term, sign,
symbol, or design or combination of them which is intended to identify the goods and services of one seller or a group of sellers” (Keller, 1993; p. 2). The brand
associations carry the meaning of the brand for the consumers (Keller, 1993). This
network of information linked to the brand node in memory is called the brand memory structure and forms the consumers’ brand knowledge (Keller, 2003).
Categorizing the nodes in the brand memory structure
The brand memory structure refers to the network of physical nodes and links
in consumer’ brains. Brand knowledge is the construct that describes and categorizes
all the nodes in the brand memory structures. To better understand and measure the
brand memory structures, we use the Dimensions of Brand Knowledge (Keller, 1993)
in this study (see Figure 1).
Figure 1 Dimensions of Brand Knowledge by Keller (1993, p.7)
Brand knowledge consists of two dimensions, namely brand awareness and
brand image. Brand awareness is defined as the strength of the brand node in the consumer’s memory (Keller, 1993). Brand awareness is reflected as the consumer’s ability to identify the brand under different conditions (Lintas, Usa, & Rossiter,
1980). Brand awareness can be divided between brand recognition and brand recall.
Brand recognition states the ability of consumers to confirm prior exposure to a brand
when the brand is given as a cue (Keller, 1993). Brand recall on the other hand, states
category is given (Keller, 1993). Brand recall and brand recognition measure
therefore a different level of brand awareness within the consumers’ mind (Heath &
Hyder, 2005).
Brand image is defined as the perceptions about a brand, and are reflected by
the different types of brand associations linked to the brand node in the consumers’
memory (Keller, 1993). Each brand association node can differ in terms of
favourability, uniqueness and strength, which results in different strengths of the link
between the brand node and the brand association node (Keller, 1993). The different
brand associations are formed based on experience and exposure and can be different
across consumers (Keller, 2003).
Benefits of strong brand memory structures
When consumers are in buying situations internal and external cues activate nodes in consumers’ minds (Romaniuk & Sharp, 2003), which can in turn spread to nodes of the brand memory structure, thus activating the entire brand memory
network (Romaniuk & Sharp, 2004). The probability that a brand is retrieved from
memory and comes to mind during purchase situations is called brand salience and is
determined by the size and quality of the brand memory network within consumers’
minds. A brand with a strong brand memory network that consists of many brand
associations (nodes) that are strongly connected with each other has more
opportunities to be activated by internal and external cues, than a brand with a small
and weak brand memory structure. Consumers, who can retrieve more brand
knowledge from their brand memory structure, thus experience more brand salience
(see Figure 1). A higher brand salience leads to an increased likelihood that a brand is
considered during the purchase process (Baker, Hutchinson, Moore, & Nedungadi,
1985; Macdonald, Sharp, Optus, & Engel, 2000), an increased product consumption
2004), and an increased consumer-based brand equity (Chandon & Wansink, 2002).
But, before companies can benefit from these effects of consumer’s brand knowledge, they have to build strong brand memory structures within consumers’ minds.
Building implicit and explicit brand memory structures
Different ways to process information
Consumers have different ways of processing information and therefore
different ways of creating memory structures. According to the Low-Involvement
Processing Model (Heath, 2001), consumers can either process information via
explicit processing, shallow processing or automatic processing (Heath, 2000; Heath,
2001) (see Figure 7). These forms of processing differ from each other by the level of
involvement and attention of the consumer with the presented information. Explicit
processing requires high levels of involvement and is in other models of information
processing often called active processing or central processing (Petty, Cacioppo, &
Schumann, 1983). Explicit processing is a conscious way of processing information.
Shallow processing requires a lower level of involvement and consumers are not
completely aware of this type of processing (Heath, 2001). The last form of
processing is automatic processing. When consumers engage in automatic processing,
they process information without awareness of the information (Heath, 2001).
Shallow processing and automatic processing are in other models of information
processing often referred to as peripheral processing (Petty et al., 1983). Each level of
attention and thus each type of processing leads to different memory types.
Consumers’ attention towards advertising
Consumers do not pay attention to everything in their environment. Before
they are even aware of it, their brain already selects from the environment what it will
Krugman, 1965). Krugman (1965) referred to this unconscious selection process as
pre-attentive processing.
According to Heath and Hyder (2005) all advertising is processed with low
attention by consumers, especially television commercials (Krugman, 1965). Petty
and Cacioppo (1996), stated that it is impossible for consumers to carefully think
about each message they receive and that they reject most of the messages because
they are not worth their time and energy. Therefore, consumers have low attention for
the processing of advertising information.
Acquiring implicit and explicit memories
Heath’s Low Involvement Processing Model can explain the consequences of consumers’ limited attention towards advertising (see Figure 2).
Figure 2 The Low Involvement Processing Model (Heath, 2001; p.79)
As can be seen in Figure 2, when consumers process advertising with low levels of
attention, they excluded explicit processing, and engage either in automatic
Automatic processing results in implicit learning and shallow processing
results in passive learning. Consumers who process information automatically, are not
consciously aware that they are learning, but implicit learning does create and/or
reinforces memory structures (Schacter, 1971). Implicit memories are able to store
concepts and meanings that are based on previous learning. Memories acquired by
automatic learning are implicit and we are not conscious aware of them (Graf, Peter,
Schacter, 1985; Heath, 2001).
When consumers decide to pay a little more attention to advertising, then
information is processed via the shallow processing route and this leads to passive
learning and implicit memories. According to Heath (2001), passive learning can
sometimes via an external cue also result in explicit memories, which are normally
only the result of explicit processing and active learning. Explicit memories are
capable of storing new ideas in memory and we are always conscious aware of them.
Shallow processing and learning can thus result in both implicit and explicit
memories.
Concluding, most advertising is thus automatically processed and this results
in implicit memory structures. In contrast to explicit memories, implicit memories
cannot store new concepts. Automatic processing and implicit learning may thus not
seem like an effective way to create (new) brand memory structures. But, implicit
memories turn out to have some advantages over explicit memories.
Advantages of implicit learning and implicit memory
First, unlike active processing, which is activated by volition, passive and
shallow processing are automatic processes. This means that consumers will engage
automatically in implicit processing at any given time, and they cannot switch this
form of processing off (Heath, 2001). This is an advantage because most consumers
information by violation in an active manner. Secondly, without active processing
consumers cannot analyse advertising messages and will store information just as
perceived. This will withhold them from forming critical thoughts about the
advertising message (Heath, 2001; van Laer, Ruyter, Visconti, & Wetzels, 2012).
Thirdly, implicit memories are more enduring than explicit memories (Shapiro &
Krishnan, 2001). People better remember implicit memories even in cases of delay
and divided attention, than explicit memories over time (Schacter, 1996; Shapiro &
Krishnan, 2001). Finally, implicit memory is inexhaustible in its capacity, whereas
explicit memory is limited in its capacity. Prior experiments showed that the capacity
of explicit memory was limited to a maximum number of 18 items that participants
could recall (Rose, 1992), while the capacity of implicit memory was not limited and
participants could recognize at least 10.000 items (Standing, 1973). These findings
suggest that implicit memory is inexhaustible, especially compared to the limited
explicit memory.
These benefits of implicit processing imply that automatic processing and thus
implicit memories may be not as ineffective in creating memory structures, as
researchers thought they would be.
Narrative information processing
In general, advertising is processed with low attention and thus low
involvement, but different advertising strategies might influence the consumers’ level
of involvement towards an ad, and therefore influence the way information is
processed and stored.
Nonnarrative advertising consists of only factual (product) information. When
information is presented in a factual way with clear arguments, consumers are
prior research available of the processing route of narrative versus nonnarrative
advertising, but due to the presentation of only factual information, we assume that
nonnarrative advertising is processed more explicitly than narrative advertising.
Because consumers are in general not highly involved in advertising, we think
nonnarrative advertising will be processed via shallow processing leading to both
implicit and explicit memory structures.
Narratives are process by the default network mode of the brain (Dehghani et
al., 2017; Spreng, Mar & Kim, 2008). The default network mode is the modus in
which the brain is in rest (Dehghani et al., 2017). Therefore, stories can be even
processed by the default network modus of the brain, when people do not pay
attention and are not involved. This leads us to think that narrative information is
processed in an implicit way. But, to fully understand narrative information
processing we should consider the mediating processes of narrative transportation.
Narrative transportation
When people consume and process a story they engage in narrative
transportation, which influences the way information is processed (van Laer et al.,
2012). Narrative transportation is “the phenomenon in which consumers mentally
enter a world that a story evokes” (van Laer et al., 2012; p. 797). These findings lead
to the first hypothesis:
H1: Narrative advertising, in contrary to nonnarrative advertising, has a positive effect on the level of narrative transportation.
Figure 3 shows the Extended Transportation-Imagery model (van Laer et al., 2012).
The Extended Transportation-Imagery Model provides insights into the factors of the
storyteller (brand) and story-receiver (consumer) that influence narrative
transportation (van Laer et al., 2012). It is important to consider the storyteller and
Figure 3 The Extended Tranportation-Imagery Model (van Laer et al., 2012; p.801)
characters, an imaginable plot and verisimilitude (believability of the story) within the
narrative message enhance narrative transportation of the story-receivers (van Laer et
al., 2012). Furthermore, van Laer et al. (2012) found that some story-receiver
characteristics mediated the relation between a narrative form and the level of
narrative transportation. Participants with more topic familiarity, higher levels of
transportability, more ad attention, a higher education and women, experienced higher
levels of narrative transportation (van Laer et al., 2012). This led to the second
hypothesis:
H2: Topic familiarity, transportability, ad attention, education and gender have a positive influence on the relationship between narrative advertising and the level of narrative transportation.
When people engage in narrative transportation, they get engrossed with the
story and are more involved with the advertisement. According to Low-Involvement
Processing, a higher level of involvement will lead to more explicit message
processing. However, more involvement with a narrative does not lead to explicit
(Green et al., 2004; Green & Clark, 2013). Story-receivers experiencing narrative
transportation have more affective responses (emotions), less critical thoughts, more narrative thoughts (representations of the story’s structure) and more story consistent believes, attitudes and intentions (van Laer et al., 2012). Emotions are processed in an
implicit way (Batra & Ray, 1986; Heath, 2001). Less critical thoughts lead to a more
implicit way of processing information (Petty et al., 1983). These two consequences
of narrative transportation and the fact that the default network mode of the brain
processes stories lead us to believe that narrative advertising is processed in an
implicit way (Adaval & Wyer, 2015; Escalas, 2004; Heath, 2001; van Laer et al.,
2012). Therefore, we assume that narrative advertising is processed via implicit
processing and thus results in implicit memories.
For this reason, narrative advertising will be more effective in creating
implicit memory structures than explicit memory structures. Nonnarrative advertising
will be more effective in creating explicit memories than narrative advertising. Next,
we connect these information-processing and memory types to the creation of brand
knowledge. The first dimension of brand knowledge, brand awareness, can be
measured with brand recall and brand recognition. When consumers are asked to
recall a brand, they retrieve information from explicit memory (Heath, 2001). This led
to the following hypothesis:
H3: Higher narrative transportation leads to less brand recall than lower narrative transportation.
However, when consumers are asked to recognize a brand, they retrieve
information from both implicit and explicit memory (Heath, 2001). Narrative
transportation led to affective responses, which in turn enhanced the strength of the
narrative advertising can retrieve information from strong implicit memories during
the recognition task. This led to the following hypothesis:
H4: Higher narrative transportation leads to more brand recognition than lower narrative transportation.
The second dimension of brand knowledge, brand image, consists of explicit
brand associations and implicit brand associations. We assumed that narrative
advertising is processed with implicit processing, which results in implicit memories
and not in explicit memories. Therefore, narrative advertising is assumed to be a less
effective way to create explicit memory structures than nonnarrative advertising. This
led to the following hypothesis:
H5: Higher narrative transportation leads to a less effective creation of explicit brand associations within consumers’ minds than lower narrative transportation.
We assumed that narrative advertising creates strong implicit memories.
Therefore, we expect narrative advertising to be a more effective way to create
implicit brand associations, than nonnarrative advertising. This resulted in the last
hypothesis:
H6: Higher narrative transportation leads to a more effective creation of implicit brand associations within consumers’ minds than lower narrative transportation.
These six hypotheses are summarized in Figure 4. By analysing these six
hypotheses we hope to deepen our understanding of the effectiveness of the narrative
Figure 4 Conceptual model hypothesis 1-6
Research method
Research design
A one-factor (narrative versus nonnarrative) within-subjects online
experiment was conducted (see Table 1). We decided to conduct a within-subject
study, because of the nature of the survey-based implicit association test (IAT). For
further argumentation of the within-subject design see Appendix 3. The order in
which the participants watched the experimental (narrative) and control
(nonnarrative) advertisements was randomized. There were no observations of the
dependents variables before the manipulation, because this could have interfered
with the results.
Timings t1 t2
Group 1 R X1 O
R = Randomised
X = Experimental manipulation O = observation
Table 1 Research design: one-factor within-subjects online experiment
Sample & data collection
The population were people who were eighteen years or older and were living
in the Netherlands. In total 120 respondents were personally contacted via an online
message to participate in de survey in December 2018. The experiment was also
shared on several professional and social network profiles of the researcher. The
experiment was accessible for Dutch inhabitant on survey exchange websites.
Participants had a chance to win a small incentive in the form of a gift voucher of €30.00. In total 140 participants started the online experiment, of which only 49% of participants finished the experiment (N = 69). This high dropout rate was due to the
fact that the experiment was only accessible via a laptop/pc, and was disconnected
whenever the experiment was accessed by a mobile phone. Furthermore, it took on
average 35 minutes to finish the experiment, which was quite long and this led to a
higher dropout rate.
Stimuli material
We used the commercial ‘The Scarecrow’ of the brand Chipotle in the narrative condition (Chipotle, 2017), and the commercial ‘Fish Tacos’ of the brand
TacoTime in the nonnarrative condition (TacoTime, 2018). See appendix 1 for the
selection criteria, selection procedure of the stimuli material and the outcomes of the
expert interviews (N = 2) about the stimuli material.
Procedure
Pre-testBefore we conducted the online experiment, we conducted an online
both conditions, which could influence the nature of information processing, and
determine the associations for our implicit association test. See Appendix 1 for the
full procedure of the pre-test and the results. Based on the outcomes of our pre-test
we decided that our stimulus material had a high quality and could be used in our
experiment. Furthermore, we choose ‘healthy versus unhealthy’ as input for the
implicit association test.
Experiment
Participants were first presented with a brief explanation of the study, which stated that we studied ‘Watching TV series’. This was a topic diversion from the real research topic to decrease levels of attention towards the commercials, and thus
increase external validity. Next, participants signed an informed consent. Moderators,
such as topic familiarity and transportability, were asked before the manipulation,
because the manipulation could influence the results of certain moderators. Before the
manipulation we added a filler question about problematic TV series consumption to
enhance further research topic distraction and include a filler task after the moderator
questions. During the manipulation participants had to watch an unrelated filler video,
in this case three minutes of the TV show ‘How I met your mother’ (season 1, episode
1). The filler video was added to simulate a normal TV watching session, which
enhances the external validity. The TV show contained two commercial breaks,
during which the narrative and nonnarrative commercials were in random order
shown (see Table 3).
TV show
(one minute of ‘How I met your mother’)
Commercial break
(Experimental manipulation)
TV show
(one minute of ‘How I met your mother’)
Commercial break
(Experimental manipulation)
TV show
(one minute of ‘How I met your mother’)
After watching the filler video and the commercial breaks with the stimulus materials
the participants had to fill in a survey. The survey consisted of questions about the
narrative transportation, brand recall, brand recognition, explicit brand associations,
and implicit brand associations for both conditions. Finally, some control variables
were asked. The survey had 102questions in total and consisted of open and closed
question and an implicit association test (see Appendix 6 for full survey).
Measures
Mediator
Narrative transportation. To measure the mediator narrative transportation we
used the Narrative Transportation Scale form Green and Brock (2000). This scale
consists of twelve items measured with a seven-point Likert scale anchored from 1 = ‘strongly disagree‘ to 7 = ’strongly agree’. We replaced words like ‘reading’ with
‘watching the commercial’ to make the scale usable for TV commercials and deleted
one item from the original scale that was only relevant for written narratives, namely
‘While I was reading the narrative, I could easily picture the events in it taking place’. See Appendix 6 for all survey items. The items were in random order
presented in the survey.
We first conducted a principal component analysis on all eleven Chipotle
narrative transportation items (Q18_narr.trans.chip__1- Q18_narr.trans.chip__11)
with a Varimax rotation. Two components had eigenvalues bigger than one (5.31 and
1.36) and in combination explained 60.62% of the variance. The scree plot showed an
inflexion after the first component, so the first component was retained in the final
analysis. This component consisted of all eleven items, which had factor loadings
of the variance. The narrative transportation scale for Chipotle had a Cronbach’s
alpha of .89. Therefore the internal consistency of the scale was highly reliable.
Then we conducted the same analysis for the Tacotime narrative
transportation items (Q18_narr.trans.taco__1- Q18_narr.trans.taco__11). Three
components had eigenvalues bigger than one (4.77, 1.42 and 1.14) and in combination
explained 66.67% of the variance. The scree plot showed an inflexion after the first
component, so the first component was retained in the final analysis. The first
component consisted of nine items with factor loadings above .45 (see Table 5 in
Appendix 2), had an eigenvalue of 4.77 and explained 43.39% of the variance. There
were two items that had factor loading below .45 in this component. We wanted to
compare the Chipotle narrative transportation scale with the TacoTime narrative
transportation scale, therefore we found it important to keep the items within both
scales the same. All eleven items of the TacoTime narrative transportation scale still
had a Cronbach’s alpha of .89, and the scale was still highly reliable, despite the
inclusion of the two items of which the factor loadings were perceived to low for
component 1.
Moderators
Ad attention. We choose to use four attention questions extracted from a study
of De Graaf, Hoeken, Sanders, and Beentjes (2009) to measure the attention paid to
the commercials. De Graaf et al. studied the role of dimensions of narrative
engagement. One of the factors of narrative engagement was ‘Attention’ and
consisted of five items measuring the attentional focus to the story. We did not use the
fifth item in our survey because that focussed more on narrative transportation than on
attention for the commercials (see all attention scale items in appendix 6). Participants
‘strongly disagree’ to 7 = ‘strongly agree’. The items were in random order presented in the survey.
First, we took a look at the four TacoTime ad attention items
(Q22__attention_taco__1 - Q22__attention_taco__4) with a principal component
analysis. Results revealed one component with an eigenvalue over 1, this component
had an eigenvalue of 3.21 and explained 80.34% of the variance. The scree plot also
showed an inflexion after the first component. This component contained of all four
items, which all had a factor loading above .45 (see Table 6, Appendix 2). The
reliability analysis showed a Cronbach’s Alpha of .92, and therefore the scale was
highly reliable.
Then, we conducted a principal component analysis and a scree plot for the
four Chipotle ad attention items (Q19_attention_chipo__1- Q19_attention_chipo__4).
The first component, and only component with an eigenvalue above one, had an
eigenvalue of 3.32 and explained 82.89% of the variance. The four items within this
component had factor loadings above .45 (see Table 7, Appendix 2). The reliability
analysis showed a Cronbach’s Alpha of .93. The scale was therefore highly reliable.
Finally we formed two ad attention scales, one for each condition, containing
the mean of the outcomes of the four ad attention items. Then, we recoded the scales
in two categorical variables with the labels 1=‘High ad attention‘ and 0=‘Low ad attention’ to make them suitable for our final analysis. Because we wanted to compare the ‘TacoTime ad attention’ and the ‘Chipotle ad attention’ variable, we used the answer category ‘neither agree or disagree’ (4) to make the distinction between high and low ad attention and not the median of the scale.
Topic familiarity. In previous research familiarity with a topic was most often
measured with the Level of Contact Report scale (Corrigan, Green, Lundin, Kubiak,
which intimacy of contact with the mental illness topic is measured. The more
situations in which people were familiar with the topic, the more familiarity with the
topic people had. The scale was used in previous studies to measure familiarity with
mental illness (Corrigan et al., 2001), therefore we changed the ‘mental illness’ topic
into ‘healthy food’ to make the scale suitable for our research. Participants had to
confirm if a situation was familiar (1) or unfamiliar (0) to them. The items were in
random order presented in the survey.
We created a new scale by adding the outcomes of all the items together. None of the participants selected the negative formulated answer category “I have never seen a person that ate healthy food”, so we did not use this item in the total familiarity scale. Finally, we created a new categorical variable with the labels 1 = ‘High
familiarity with topic’ and 0 = ‘Low familiarity with topic”. The distinction between scores that were allocated to the high or low topic familiarity category was made
based on the median 5 of the scale (cumulative percentage of 68.10%).
Transportability scale. To measure the participants’ transportability we used
the widely used Transportability Scale (TS) (Dal Cin et al., 2004; Phillips &
McQuarrie, 2010; van Laer et al., 2012). This scale consists of 18 items, which could
be answered on a seven-point Likert scale, ranging from 1= ‘Strongly disagree’ till 7= ‘Strongly agree’. The items were in random order presented in the survey.
First, we recoded the negatively formulated items three, six and nine. Then,
we conducted a principal component analysis with Varimax rotation with all 18 items
(Q5__Transportability_1- Q5__Transportability_18). The analysis showed that there
were four components with eigenvalues higher than one (1.32, 1.50, 1.88 and 6.50),
which together explained 62.20% of variance. The scree plot showed an inflexion
after the first component. Therefore we selected the first component for the final
and consisted of 13 items with factor loadings higher than .45 (see table 8, Appendix
2). The new scale with had a Cronbach’s alpha of .91, which made it highly reliable.
Finally, we created a new categorical transportability variable with the labels 1
= ‘High Transportability’ and 0 = ‘Low Transportability’. The distinction between
high and low transportability was made based on answer category 4 = ‘neither agree or disagree’. All scores from 1-4 were coded as ‘Low Transportability’, and all scores 4-7 were coded as ‘High transportability’.
Education. We measured education with a multiple-choice item in the survey
ranging from no education to a Master’s degree. The choices were based on the
education levels used by the Centraal Bureau voor Statistiek ("CBS Statline", 2019).
Gender. We measured gender with a one-item multiple-choice question in the
survey. Participants could either choose ‘man’, ‘woman’, or ‘prefer not to
disclose/other’.
Dependent variables Brand awareness
Brand awareness was operationalized as brand recall and brand recognition.
Brand recall. The explicit brand awareness was measured with a cue-based
brand recall test (Rossiter, 2014; Srinivas & Roediger, 1990). With an open-ended
question we asked participants to name the two brands they saw during the
commercials breaks. We choose the answers ‘Taco Time’ and ‘TacoTime’, ‘Chipotel’
and ‘Chipotle’ as ‘adequate-for-choice’ answers. We coded these outcomes into two
categorical dependent variables, which respectively measured the recall of the
TacoTime brand and the recall of the Chipotle brand (1 = ‘recall’, 0 = ‘no recall’).
Brand recognition. This type of measurement can recall information from
therefore used to measure the explicit ánd implicit brand awareness. We used iconic
recognition with a one-item multiple choice question to measure brand recognition
(Rossiter, 2014). We used the same logos as in the commercials. The Chipotle logo,
the TacoTime logo and 10 brand logos of other taco restaurants were presented in a
random order to the participants. They could select a maximum of two brand logos
that they recognized from the commercial breaks. There was also an “I don’t
recognize any” option they could select, to avoid guessing and increase the reliability
of the question.
Brand image
We made a distinction between the explicit brand associations and the implicit
brand associations, to measure the brand image both recalled from the explicit and
implicit memory network. The items in each question about the explicit and implicit
Chipotle and TacoTime brand associations were presented in a random order.
Explicit brand associations
Based on the Dimensions of Brand Knowledge (Keller, 1993) we measured
the number, the strength, the favourability and uniqueness of the explicit brand
associations to measure the quantity and quality of the explicit brand association
network, and thus the explicit brand image.
Number of explicit brand associations. In this study we used the unstrained
free elicitation measurement, which is often used to identify possible brand
associations (Danes, Hess, Story, & York, 2010; Danes, Story, & Vorst, 2012) We
used the open-ended question “When thinking about Chipotle/TacoTime, what
associations comes to mind?”. After writing down a brand association, three
follow-up questions appeared asking about the strength, favourability and uniqueness of that
commercial and were encouraged to mention as many associations as possible. Empty
brand associations lines and their follow up questions were scored as missing, and
then calculated the total number of brand associations per participants per condition. This created two variables namely, ‘Number of explicit brand associations (Chipotle)’ and ‘Number of explicit brand associations (TacoTime)’.
Strength of explicit brand associations. The strength of the mentioned brand
associations were measured on a seven-point Likert scale on which participants
selected how well they thought the association was linked to the brand, anchored by
7=“Extremely well” and 1=“Not well at all” (Schnittka, Sattler, & Zenker, 2012).
Next, we calculated the mean association strength per participant per commercial and
subsequently created two variables namely, ‘Strength of brand associations (Chipotle)’ and ‘Strength of brand associations (TacoTime)’.
Favourability of explicit brand associations. The question “Do you think this association is positive or negative?” was answered on a seven-point Likert scale,
anchored by 7=‘Extremely positive’ to 1=‘Extremely negative’ (Schnittka et al.,
2012). We calculated the average association favourability per participants per
condition, and thus created the two variables ‘Favourability of brand associations (Chipotle)’ and ‘Favourability of brand associations (TacoTime)’.
Uniqueness of explicit brand associations. Participants answered the question “How unique do you think this association is?” on a seven-point Likert scale,
anchored by 7=‘Extremely unique’ to 1=‘Extremely ordinary’ (Schnittka et al., 2012).
We calculated the average association uniqueness per participant per condition. By doing so we created the variables ‘Uniqueness of brand associations (Chipotle)’ and ‘Uniqueness of brand associations (TacoTime)’.
A commonly used implicit measure is the Implicit Association Test
(IAT)(Calvert, 2015; Greenwald, Mcghee, & Schwartz, 1998). Important benefits of
this test are that it can be integrated in Qualtrics, which is used to make and distribute
our online experiment, and that participants do not need equipment to use it (Calvert,
2015). This makes this measure highly scalable and cost effective. Therefore, we used
an IAT integrated in Qualtrics in this study.
IAT research design. We used a seven-block counterbalanced Implicit
Association Test (Greenwald et al., 1998). With the IATgen tool we generated the
needed code to implement the IAT into Qualtrics (Carpenter et al., 2009). The same
tool also calculated the D-scores and did the reliability analyses. Due to the nature and
the duration of the IATs, we only measured the strength and favourability of the
implicit associations. The D-scores could range from 1 (strong link between
Healthy/Good and Chipotle) till -1 (strong link between Healthy/Good and
TacoTime). A D-score of approximately zero indicated no difference in the
association strength for the Healthy/Good association between Chipotle and
TacoTime. See Appendix 3 for the complete procedure of the IAT, the IAT
parameters and the calculation of the D-scores.
Strength of an implicit association. As input for this IAT we used the explicit
association, Healthy, which was most often mentioned in our pre-test. Another benefit was that ‘healthy food’ was also the main topics in both commercials. By presenting Healthy and Unhealthy in an IAT we could test which condition created the strongest
link between the Healthy association and their brand name. We thus measured the strength between the categories ‘Healthy’ versus ‘Unhealthy’ and the brands ‘Chipotle’ versus ‘TacoTime’. See Figure 6 (Appendix 3) for the full IAT (Healthy/Unhealthy) research design.
The average error rate of the Strength (Healthy/Unhealthy) IAT was .08. One
participant was dropped due to excessive speed from the final analysis. The estimated
internal consistency of the Strength (Healthy/Unhealthy) IAT, based on split-half with
Spearman-Brown correction, was .78. This makes the scale reasonably reliable.
Favourability of implicit associations. To measure the favourability of an
implicit association prior research used the categories ‘Good’ and ‘Bad’ (Brunel,
Tietje, & Greenwald, 2004; Greenwald et al., 1998; Karpinski & Hilton, 2001; Lane,
Banaji, Nosek, & Greenwald, 2007). This IAT was focussed on the link between the
favourable association ‘Good’ and unfavourable association ‘Bad’ and the brands ‘Chipotle’ and ‘TacoTime’. See Figure 7 (Appendix 3) for an example of the Favourability (Good/Bad) IAT and the category dimensions.
Two participants of the Favourability (Good/Bad) IAT were dropped due to
excessive speed. The average error rate of this IAT was .07. The estimated internal
consistency of the Favourability (Good/Bad) IAT, based on split-half with
Spearman-Brown correction, was .74, which makes the scale reasonably reliable.
Control variables
Finally, we controlled for some factors that are known to influence attention to
the ad, and thus the form of processing by asking a few control questions.
Prior exposure to the brands. By using foreign stimuli materials we tried to
control for the prior exposure to the advertisements. To check is we succeeded we
asked the participants in two items if they knew the brand and if they had seen the
advertisement before the experiment. Prior brand knowledge was answered with a 1= ‘Did know brand before experiment’ and 0 =’Did not know brand before experiment’.
Usage of product category. We asked about the usage of the product category
tacos with one item on the survey. Participants answered the question ‘How often do
you eat Tacos?’ with answers ranching from: 1 = ‘never’ to 8 =‘Once every 2-3 days’.
Results
First, outliers and undefined categories (such as ‘I do not wish to disclose my gender’) were labelled as missing values across all variables. The participants (N = 69) were of twelve different nationalities. Most of them were Dutch (n = 43) followed
by British (n = 8) and German (n = 4). Seventy-five precent of the participants was
female (n = 52). The average age of the respondents was 27.84 years old (SD = 8.61). Most respondents had a Master’s degree (n = 33). Participants had low topic
familiarity (n = 47) and had a low transportability level (n = 57). During the narrative
commercial (Chipotle), most participants experienced a high level of ad attention (n =
46). In contrast, most participants (n = 57) experienced a low level of ad attention
during the nonnarrative commercial (TacoTime). Just over half (56.50%) of the
participants stated that they knew the Chipotle brand before the experiment (n = 39),
compare to only 7.20% of participants who stated they knew the TacoTime brand
before the experiment (n = 5). Most respondents that already knew Chipotle stated
that they did not know Chipotle ‘well at all’ (21.70%) or just ‘slightly well’ (18.87%).
However, 72.50% of respondent (n = 50) stated that they had never seen the Chipotle
commercial before the experiment. Finally, the average participant ate tacos once
every half-year (M = 2.96, SD = 1.59).
Hypothesis 1 & 2
In hypothesis 1 we stated that narrative advertising, compared to nonnarrative
advertising, would have a positive effect on the level of narrative transportation. The
variables; one for the narrative transportation during the narrative condition
(Chipotle) and one for the narrative transportation during the nonnarrative condition
(TacoTime). On average participants (N = 69) experienced a higher level of narrative
transportation during the narrative condition (M = 4.07, SD = 1.11) than during the
nonnarrative condition (M = 2.47, SD = .86).
In hypothesis 2 we stated that the categorical moderators ‘Topic familiarity’, ‘Transportability’ ‘Ad attention Chipotle’, ‘Ad attention TacoTime, ‘Education’ and ‘Gender’ had a positive influence on the relation between the condition and narrative transportation. We conducted a factorial repeated-measures ANOVA analysis to test
hypothesis 1 and 2. The ‘Narrative transportation’ (narrative & nonnarrative) and ‘Ad
attention’ (narrative & nonnarrative) variables were selected as within-subjects variables. ‘Topic familiarity’, ‘Transportability’, ‘Education’ and ‘Sex’ were selected as between-subjects variables and the continuous variables ‘Prior exposure
(Chipotle)’, ‘Prior exposure (TacoTime)’ and ‘Product usage’ were selected as control
variables. Sphericity is only an issue if there are more than two levels. Our
within-subjects variables only had two levels. That is why sphericity was met in our study and we looked at the ‘sphericity assumed’ row of the within-subject effects table (Field, 2017, p 475).
Narrative transportation. The test of within-subject effects revealed that the
participants experienced significantly higher levels of narrative transportation in the
narrative condition, than in the nonnarrative condition, F (1, 43)= 217.13, p < .000,
partial η2 = .84. The partial eta squared values showed a strong positive effect of the
advertisings strategy on narrative transportation and therefore hypothesis 1 was
confirmed.
Moderators. As for hypothesis 2, we found a significant, but weak positive
between the advertising strategy and the level of narrative transportation, F (1, 43) =
6.43, p = .015, partial η2 = .13. Participants with high levels of transportability scored
higher on narrative transportation in the narrative condition than participants with a
low level of transportability. This moderator effect of Transportability partially
confirmed Hypothesis 2.
The test of within-subjects effects also revealed ‘Ad attention’ as a second
moderator to have a weak positive effect on the relation between ‘Condition’ and “Narrative transportation’, F (1, 43) = 4.42, p = .042, partial η2
= .09. Participants
with a high level of ad attention therefore scored a higher on narrative transportation
in the narrative condition than participants with a low level of ad attention. This also
partially confirmed hypothesis 2.
Control variables. Concerning the control variables, we found a significant
interaction effect concerning ‘Prior exposure (Chipotle)’, F (1, 43) = 5.02, p = .030,
partial η2 = .11. This means that participants who knew Chipotle, showed a
significantly higher level of narrative transportation during the narrative condition
than participants who did not know Chipotle.
Additional main effect. Finally, we also found a main effect of condition on ad
attention in the test of within-subjects effects. Contrasts revealed a mediocre positive
relation between the condition and the level of ad attention, F (1, 43) = 10.71, p =
.002, partial η2 = .20. This means that the narrative condition evoked a significantly
higher level of ad attention than the nonnarrative condition.
Hypothesis 3
In hypothesis 3 we stated that higher narrative transportation would lead to
less brand recall than lower narrative transportation. More participants (n = 44) could
nonnarrative condition (TacoTime) (n = 13). On average participants experienced a
higher level of narrative transportation during the narrative condition (M = 4.07, SD =
1.11) than during the nonnarrative condition (M = 2.47, SD = .86). In the nonnarrative
condition 94% of the participants had a score below 4 (which indicates a low level of
narrative transportation). The responses in the narrative condition had a broader
variance, as 45% of the scores were below 4 and the rest of the scores were above 4
(which indicates a high level of narrative transportation). When we conducted the
binary logistic regression analyses and the linear regression analyses for both
conditions (to answer hypothesis 3, 4, 5 and 6) only the models based on the data of
the narrative conditions found significant results. See Appendix 4 for the full analysis
of hypothesis 3, 4, 5, and 6 separately for the two narrative transportation conditions.
The lack of significant results of the models based on the data of the nonnarrative
condition was probably due to the low variance of the nonnarrative transportation
(TacoTime) data. The ‘Narrative transportation (Chipotle)’ had a variance of 1.24 (M
= 4.07, SD = 1.11) compared to a low variance of .74 of the variable ‘Narrative transportation (TacoTime)’ (M = 2.47, SD = .86). These numbers indicated that there were simply no high narrative transportation scores in the nonnarrative condition,
which could be analysed and this probably led to non-significant results.
New ‘Narrative transportation (total)’ measure
To tackle this variance problem, we created eight new variables, in which we
combined the data of both conditions and thus treated the repeated scores as
independent scores. We made a ‘Narrative transportation (total)’ variable, which first the listed narrative transportation scores of participants during the narrative condition,
and then the narrative transportation scores of participants during the nonnarrative
‘brand recognition’, ‘number of brand associations’, ‘strength of brand associations’, ‘favourability of brand associations’, ‘uniqueness of brand associations’ and ‘prior brand exposure’. We made sure that one participant’s narrative transportation score
during the Chipotle commercial was linked to the recall score of Chipotle, and vice
versa for TacoTime (see figure 8, Appendix 4). The new ‘Narrative transportation (total)’ variable ranged from 1 till 6.55 (M = 3.27, SD = 1.27) on a scale from 1 = ‘Low narrative transportation’ till 7 = ‘High narrative transportation’. Within the new Narrative transportation variable 51% of participants had a score of 3 and below. The
data had a better variance of 1.63 (M = 3.27, SD = 1.27) than the data in the old
variables. We used these new variables to test hypothesis 3-6. First, we conducted two
binary logistic regressions to predict recall and recognition in order to analyse brand
awareness.
Brand recall (total). A test of the model with our predictors versus the model
with only the intercept was significant, χ2
(8, N = 138) = 25.41, p < .001. The data
fitted the model well according to the Hosmer and Lemeshow test, which was not significant, χ2
(8, N = 138) = 1.38, p = .995. The total of the independent variables
explained 42% of the variance in the dependent variable (Nagelkerke R2 = .42). As
can be seen in table 18 (Appendix 5), the variable ‘Narrative transportation (total)’ and ‘Prior brand exposure (total)’ had significant partial effects. The odds ratio showed that when a participant knew the brand before the exposure, they were 8.26
times more likely to recall the brand and when a participant’s ‘Narrative
transportation (total)’ score increased with one, then the participant was 2.18 times
Hypothesis 4
In hypothesis 4 we stated that higher narrative transportation would lead to
more brand recognition than lower level narrative transportation. More participants
recognized the brand in the narrative condition (Chipotle) (n = 63) than the brand in
the nonnarrative condition (TacoTime) (n = 57). To test this hypothesis, we analysed
if the variables ‘Narrative transportation (total)’, ‘Prior brand exposure (total)’, and ‘Product usage’ had a predictive value on the probability of participants’ ability to recognize a brand. Our model with all the above predictors had no higher predictive
value than a model with just the intercept, χ2 (8, N = 138) = 14.74, p = .064. But, a
model with only ‘Narrative transportation (total)‘ as predictor did increase the
predictive value, compared to the model with only the intercept, χ2 (8, N = 138) =
5.03, p = .025. The data fitted the model well, as the Hosmers and Lemeshow’s test was not significant, χ2
(8, N = 138) = 14.44, p = .071. The total of the independent
variables explained 15% of the variance in the dependent variable (Nagelkerke R2 =
.15). Narrative transportation (total) had a significant strong positive effect (see Table
19, Appendix 5). The odds ratio showed that when a participant’s narrative
transportation score increased with one, they were 2.28 times more likely to recognise
the brand. These results showed that higher narrative transportation lead indeed to
more brand recognition than lower narrative transportation, and confirmed hypothesis
4.
Hypothesis 5
The fifth hypothesis stated that higher narrative transportation leads to a less
effective creation of explicit brand associations within consumers’ minds than lower
levels narrative transportation. The effectiveness of creating brand associations was
brand associations. On average participants could recall 3.11 (SD = 1.66) Chipotle
brand associations, compared to 2.65 TacoTime brand associations (SD = 1.74). The
average strength per association was almost equal in the nonnarrative condition (M =
5.52, SD = 1.14), as in the narrative condition (M = 5.50, SD = 1.24). The
favourability (M = 5.19, SD = 1.33) and uniqueness (M = 3.86, SD = 1.44) of explicit
brand associations was higher in the narrative condition than in the nonnarrative
condition (M = 4.20, SD = 1.42; M = 2.84, SD = 1.45). To analyse if these findings
were significant and caused by the level of narrative transportation we conducted four
linear regression analyses. In all four analyses we entered the ‘Prior exposure (total)’ and ‘Product usage’ as control variables. There were no outliers. The histograms of all the variables in the four analyses showed a normal distribution. The scatterplots with
the variables showed a linear line and the scatterplots with the residues of the
different variables showed homoscedasticity for all four analyses.
Number of explicit brand associations (total). The independent variable
‘Narrative transportation (total)’ and control variables predicted the dependent variable ‘Number of brand associations (total)’, F (3, 65) = 11.69, p < .000. These variables together explained 35 % of the variance in de dependent variable (R2 = .35). The coefficients table revealed that ‘Narrative transportation (total)’ had a significant strong positive effect, b* = .57, t = 5.71, p < .000, 95% CI [.65, 1.16] (see Table 20,
Appendix 5). When a participant scored one value higher on the narrative
transportation scale, then the amount of mentioned brand associations increased with
.86.
Strength of explicit brand associations (total). The model consisting of the
independent variable ‘Narrative transportation (total)’ and control variables did not predict the dependent variable ‘Strength of explicit brand associations (total)’ as the ANOVA was not significant, F (3, 65) = 2.62, p = .059. Therefore, we found no
significant effect of narrative transportation on the strength of explicit brand
associations.
Favourability of explicit brand associations (total). Our model with the
independent variable ‘Narrative transportation (total)’ and the control variables had
predictive value over the dependent variable ‘favourability of explicit brand associations’, F (3, 65) = 3.86, p = .014. In total these independent variables
explained 16% of the variance in the dependent variable (R2 = .16). Both ‘Narrative transportation (total)’ (b* = .27, t = 2.29, p = .026, 95% CI [.05, .67]) and ‘Prior brand exposure (total)’ had a significant weak effect on the favourability of brand
associations, b* = -.27, t = -2.23, p = .029, 95% CI [-1.36, -.08] (see table 21,
Appendix 5). When a participant scored one value higher on the narrative
transportation variable, their average favourability increased with .36. But, if the
participants knew the brand before the experiment, then the favourability decreased
with .72.
Uniqueness of explicit brand associations (total). Finally, the model with
‘Narrative transportation (total)’ and the control variables showed predictive value over the ‘Uniqueness of explicit brand associations (total)’, F (3, 65) = 3.50, p = .021. The total of our independent variable and control variables explained 15% of the
variance in the uniqueness of the explicit brand associations (R2 = .15). We found
only a mediocre significant negative effect of the ‘Prior brand association (total)’
variable, b* = -.36, t = -3.02, p = .004, 95% CI [-1.76, -.36] (see table 22, Appendix
5).
In contrary to hypothesis 4, higher narrative transportation led to a higher
number of and more favourable explicit brand associations than lower narrative
Hypothesis 6
In hypothesis 6 we stated that higher narrative transportation leads to a more
effective creation of implicit brand associations within consumers’ minds than lower
narrative transportation. On average participants showed a stronger link between the
term Healthy and Chipotle than between Healthy and TacoTime (M = .10, SD = .39).
On average participants showed a stronger link (M = .19, SD = .39) between Good
and Chipotle, than between Good and TacoTime. We conducted two linear
regression analyses to explore if these results were significant and included the control variables ‘Prior brand exposure (total)’ and ‘Product usage’. The scatterplot for both analyses showed a linear line, and the scatter plot with the residues had
homoscedasticity. The histograms revealed a normal distribution of the data in both
analyses.
Strength of implicit brand associations. The model with ‘Narrative
transportation (total)’ and the control variables was not significant, F (3, 64) = 2.52, p = .066. But a model with only ‘Narrative transportation (total)’ as a predictor was significant, F (3, 66) = 5.18, p = .026. This model explained 7% of variance in the
strength of the implicit association (R2 = .07). We found a significant, but weak effect of ‘Narrative transportation (total)’, b* = .27, t = 2.28, p = .026, 95% CI [.01, .19] (see table 23, Appendix 5). When participants scored one value higher on the
narrative transportation scale, then the strength between Chipotle and the Healthy
association increased with .10.
Favourability of implicit brand associations. The model with ‘Narrative
transportation (total)’ and control variables was not significant, F (3, 63) = 2.67, p =
.055. However, a model with only ‘Narrative transportation (total)’ as a predictor was
significant, F (1, 65) = 7.30, p = .008. This model explained 10% of the variance in