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  <front>
    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>Preliminary study on the correlation between gratitude activity and prosocial behaviour⋆</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Yukitoshi Kashimoto</string-name>
          <email>yu-kashimoto@kddi.com</email>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Tomohiro Sakai</string-name>
          <email>xti-sakai@kddi.com</email>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Atsunori Minamikawa</string-name>
          <email>at-minamikawa@kddi.com</email>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>KDDI Research Inc.</institution>
          ,
          <addr-line>Fujimino</addr-line>
          ,
          <country country="JP">Japan</country>
        </aff>
      </contrib-group>
      <abstract>
        <p>Several studies report that gratitude behaviour results in prosocial behaviour. Unfortunately, most studies prove this correlation from questionnaires of university students. In addition, few try to study the mediator between gratitude behaviour and prosocial behaviour. In this paper, we present our preliminary research on the correlation between gratitude behaviour and prosocial behaviour among store workers. To study the correlation, we conducted a questionnaire that collected features relating to gratitude and prosocial behaviour, self-eficacy, and social worth. 772 subjects completed the questionnaire. The questionnaire results indicate that gratitude predicts prosocial behaviour via self-eficacy and social worth.</p>
      </abstract>
      <kwd-group>
        <kwd>Gratitude</kwd>
        <kwd>Pro-social behaviour</kwd>
        <kwd>Self-eficacy</kwd>
        <kwd>Social worth</kwd>
        <kwd>Workplace</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>Introduction</title>
      <p>
        Gratitude is the positive emotion one feels when another person has intentionally
given, or attempted to give, one something of value. Ralph Waldo Emerson ofers
a helpful introduction to gratitude as the ability to “Cultivate the habit of being
grateful for every good thing that comes to you, and to give thanks continuously.
And because all things have contributed to your advancement, you should include
all things in your gratitude”1. Thus, gratitude may guide people towards a sense
of meaning and better health. For decades, thinkers in various fields have believed
this emotion to be essential for building and preserving social relationships as
“not only the best, but the parent of all other virtues[
        <xref ref-type="bibr" rid="ref3">3</xref>
        ]”, “the moral memory of
mankind[
        <xref ref-type="bibr" rid="ref11">11</xref>
        ]”, and the “sentiment which most immediately and directly prompts
us to reward[
        <xref ref-type="bibr" rid="ref12">12</xref>
        ]”.
      </p>
      <p>
        Along with the growth of positive psychology, many researchers have studied
the psychological efect of gratitude[
        <xref ref-type="bibr" rid="ref2">2</xref>
        ][
        <xref ref-type="bibr" rid="ref5">5</xref>
        ][
        <xref ref-type="bibr" rid="ref6">6</xref>
        ]. There are two main fields of
gratitude research. The first is focused on trait-gratitude. McCullough, Emmons, and
      </p>
      <p>
        Tsang defined trait gratitude as “the trend of feeling or noticing gratitude toward
the other’s benefaction role along with their positive experience and outcome”,
which refers to the diference in gratitude feelings between individuals[
        <xref ref-type="bibr" rid="ref8">8</xref>
        ]. The
other area focuses on functional gratitude, which was first proposed by Algoe[
        <xref ref-type="bibr" rid="ref1">1</xref>
        ].
Algoe described the gratitude function based on the proposed
Find-Remind-andBind theory. According to this theory, the feeling of gratitude reminds us of the
value of our relationships with others and enriches such relationships by recalling
their positive aspects.
      </p>
      <p>
        Other studies of psychology focus on the concept of being thanked. Grant
and Gino found that individuals who report habitually experiencing gratitude
engage in prosocial behaviours via self-eficacy and social worth[
        <xref ref-type="bibr" rid="ref4">4</xref>
        ]. Here, we
note that self-eficacy refers to a person’s belief that they can be successful in
achieving a particular outcome. Social worth is defined as a person’s belief that
they feel needed by others or evaluated positively. Grant and Gino proved that
gratitude promotes prosocial behaviour via social worth rather than self-eficacy
through an experiment with college students. The authors argue that a person
who performs prosocial behaviour tends to do so eficiently. Therefore, when
they are thanked, they realize that they have succeeded in supporting others or
are evaluated well by them.
      </p>
      <p>In our research, we apply Grant and Gino’s psychological mechanism to a
person who is thankful. In other words, we assume that a person who is thankful
engages in prosocial behaviour by encouraging self-eficacy and social worth.
Algoe’s Find-Remind-and-Bind Theory indicates that a person who feels gratitude
recognises help received from others or recognizes the value of relationships. The
relationship with the supporter elicits condfience in overcoming challenges or
draws attention to connections with others. Then, a person who feels gratitude
engages in prosocial behaviour.</p>
      <p>Although previous studies have explored gratitude through experiments with
college students, we can also apply the psychological efect of gratitude to
workers. Since workers help each other daily, we need to study the psychological
mechanism of gratitude involved among them. Therefore, we studied this mechanism
and evaluated whether gratitude promotes prosocial behaviour via self-eficacy
and social worth through a questionnaire.</p>
      <p>In this paper, we present our preliminary work on the mediator between
gratitude and prosocial behaviour and verify the link between gratitude and
prosocial behaviour among shop workers. First, we hypothesize that self-eficacy
and social worth mediate the link between gratitude and prosocial behaviour. To
prove the proposed theory, we asked shop staf to complete a questionnaire on
gratitude, prosocial behaviour, self-eficacy, and social worth. We applied a
correlation analysis and structural equation modelling (SEM) to the collected data.
The analysis proves that both self-eficacy and social worth mediate the
relationship between gratitude and prosocial behavior. We also confirm the existence of
a link between gratitude and prosocial behaviour among shop staf.</p>
    </sec>
    <sec id="sec-2">
      <title>Method</title>
      <sec id="sec-2-1">
        <title>Questionnaire and measurements</title>
        <p>To study the mediator between gratitude and prosocial behaviour and verify the
link between gratitude and prosocial behaviour among shop workers, we designed
a questionnaire. The questionnaire includes five parts focused on the following:
demographic information, gratitude behaviour, self-eficacy, social worth, and
prosocial behaviour.</p>
        <p>In the demographic information section, we collected the age and gender of
the subjects.</p>
        <p>
          In the gratitude behaviour section, we asked the participants about the
frequency of their feelings of gratitude, such as in relation to their relationships
with people, salary, work-life balance, and so on. We designed this part of the
questionnaire based on “The Japanese version of the Gratitude at Work Scale
(GAWS)”. From the GAWS, we measure the gratitude that shop staf feel based
on 10 questionnaire items[
          <xref ref-type="bibr" rid="ref7">7</xref>
          ]. The subject completes the questionnaire on a
fivepoint scale that is used to allow the individual to express how much they feel
or do not feel gratitude according to a given statement. Namely, when a subject
provides a high score, we conclude that they regularly feel gratitude in their
working environment.
        </p>
        <p>
          In the self-eficacy section, we asked subjects about the degree of self-eficacy
felt. We designed this part of the questionnaire based on “the Scale Measuring
a Sense of Generalized Self-Eficacy (SMSGSE)”[
          <xref ref-type="bibr" rid="ref10">10</xref>
          ]. From the SMSGSE, we
measure self-eficacy based on the personality traits of shop staf based on seven
questionnaire items. The subject completes the questionnaire on a five-point
scale, which is used to allow the individual to express how much they agree or
disagree with statements corresponding to self-eficacy. Namely, when a subject
provides a high score, we conclude that they experience self-eficacy.
        </p>
        <p>
          In the social worth section, we asked subjects about their degree of social
worth[
          <xref ref-type="bibr" rid="ref13">13</xref>
          ]. We designed the questionnaire based on the Social Mental Act Scale
(SMAS), which derives from the Value-intending Mental Act Scale. With the
SMAS, we can measure how much an individual feels a sense of value in
connection with others and contributes to others’ well-being. Thus, we measure social
worth from the SMAS with eight questionnaire items. Each subject completed
the questionnaire on a five-point scale to allow each individual to express how
much they agreed or disagreed with each statement. Namely, a high score denotes
a sense of social worth.
        </p>
        <p>
          In the prosocial behaviour section, we asked subjects about their degree
of prosocial behaviour. We designed this part of the questionnaire based on
“The Japanese Version of the Organizational Citizenship Behavior Scale (OCB
Scale)”[
          <xref ref-type="bibr" rid="ref9">9</xref>
          ]. With the OCB Scale, we measure each worker’s prosocial behaviour
in the working environment. This scale measures vfie subscales for
”Interpersonal help”, ”Conscientiousness”, ”Concentration on the job”, ”Supporting the
organization”, and ”Cleanliness”. For each subscale, the subject responds with
a five-point scale, which is used to allow the individual to express how much
they perform or do not perform the activity described in the given statement.
Namely, a high score denotes engagement in prosocial behaviour.
2.2
        </p>
      </sec>
      <sec id="sec-2-2">
        <title>Data Collection</title>
        <p>We collected data between 15.12.2021 and 22.12.2021. First, we recruited 1154
subjects among shop workers of a telecommunication shop. We implemented
the designed questionnaire form into web-based questionnaire system and
distributed it to the staf working in the telecommunication store. On 22.12.2021,
772 subjects completed the questionnaire, representing 66.9% of the recruited
subjects. 53% of the subjects was female. 47% of the subjects was male.
2.3</p>
      </sec>
      <sec id="sec-2-3">
        <title>Analysis Method</title>
        <p>We used a correlation analysis and SEM to validate our hypothesis. First, we
studied the correlations between parameters through a correlation analysis. Based
on Cohen’s efect size, we evaluated Pearson’s r values. A value of 0.10
corresponds to a small value. A value of 0.30 corresponds to a moderate value. A
value of 0.50 corresponds to a high value.</p>
        <p>Second, we analyzed the link between gratitude and prosocial behavior via
SEM. We assume that gratitude encourages prosocial behaviour via self-eficacy
or social worth. We evaluated the assumed model based on the comparative fit
index (CFI), Tucker-Lewis index (TLI), root-mean-square error of approximation
(RMSEA), standardized root-mean-square residual (SRMR), Akaike information
criterion (AIC), and Bayesian information criterion (BIC). According to Hu and
Bentler, when the CFI and TLI are greater than 0.95, the RMSEA is less than
0.06, and the SRMR is less than 0.08, the data adapt to the model. We select the
model that has the lowest AIC and BIC as the most adapted model. Based on
the abovementioned six adaptation degrees, we determine the best SEM model.</p>
        <p>First, we validate the reliability of each parameter. The internal consistency
level of alpha value ranges between 0.81 and 0.91, which means that it exhibits
suficient reliability. Then, we calculate the average and standard deviation of
each parameter and validate the corresponding correlation. Table 1 shows the
result. Through correlation analysis, we find position correlations ( r = .21 ∼
73, p &lt; .001).</p>
        <p>Second, we evaluate the proposed path model: there are links between
gratitude and prosocial behaviour via self-eficacy and social worth. The results of
the SEM analysis are shown in Table 2. Of the three models, Model 3 adapts
most to the data.</p>
        <p>Figure 1 shows Model 3. Unlike for Models 1 and 2, we assume a correlation
between self-eficacy and social worth in Model 3.</p>
        <p>In Model 3, gratitude has a positive efect on self-eficacy ( β = .33, p &lt; .001)
and social worth (β = .46, p &lt; .001). In addition, gratitude has a positive efect
on interpersonal help (β = .23, p &lt; .001), conscientiousness (β = .22, p &lt; .001),
concentration on the job (β = .18, p &lt; .001), supporting the organization (β =
.39, p &lt; .001), and cleanliness (β = .10, p &lt; .001). Moreover, self-eficacy has a
positive efect on interpersonal help ( β = .21, p &lt; .001), concentration on the
job (β = .06, p &lt; .001), and supporting the organization (β = .16, p &lt; .001). In
contrast, social worth has a positive efect on interpersonal help ( β = .31, p &lt;
.001), conscientiousness (β = .33, p &lt; .001), concentration on the job (β =
.40, p &lt; .001), supporting the organization (β = .17, p &lt; .001), and cleanliness
(β = .28, p &lt; .001).</p>
        <p>From the above results, we determine that gratitude predicts prosocial
behavior via self-eficacy and social worth.
4</p>
      </sec>
    </sec>
    <sec id="sec-3">
      <title>Discussion</title>
      <p>In this research, we investigated our hypothesis of shop workers: Gratitude
encourages prosocial behaviour via self-eficacy and social worth.</p>
      <p>Through SEM analysis, we validated the two psychological processes. For
the first process, gratitude in the working environment promotes prosocial
behaviour via self-eficacy. From this process, we confirm that gratitude does not
promote “conscientiousness” or “cleanliness” in terms of prosocial behaviour. In
contrast, gratitude promotes “interpersonal help”, “concentration on the job”,
and “supporting the organization”. These results indicate the following: even
when shop staf experience challenges with their work, they have the confidence
to overcome them through support from their colleagues. Furthermore, with this
confidence, they engage in their daily work and help their colleagues.</p>
      <p>For the second process, gratitude in the work environment promotes
prosocial behaviour via social worth. For this process, in contrast to self-eficacy, we
confirm that gratitude promotes prosocial behaviour in the work environment.
When gratitude results in prosocial behaviour via social worth, shop staf tend
to regard relationships with their family, friends and colleagues as important. In
other words, shop staf who value interpersonal relationships engage in prosocial
behaviour towards their colleagues.</p>
      <p>In summary, the proposed model proves the following for shop staf who feel
gratitude: They notice that they are supported by others. They have confidence
to overcome obstacles. They help other staf (prosocial behaviour) since they
value interpersonal relationships with others.</p>
      <p>Regarding behaviour change, we find that we can utilize two diferent
intervention techniques to encourage prosocial behaviour. For the first technique, we
encourage staf to realize their prosocial behaviour by stimulating self-eficacy.
For example, if a staf member has a high self-eficacy score, a message such
as “Send your gratitude to your colleague! You can do it!” can be impactful.
Staf can also be encouraged to engage in prosocial behaviour by stimulating
their social worth. For example, for a staf member with a high social worth
score, a message such as “Send your gratitude to your colleague! Your colleague
will appreciate it!” can be helpful. Based on these findings, we plan to design
behaviour change applications as a next research step. A chatbot-based
communication application will be an example. In the app., the chatbot stimulates the
staf to express gratitude to the other staf. In the stimulus messages, we can
utilize the techniques found in this study.</p>
    </sec>
  </body>
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