Effect of Manipulating Descriptive Norms and Positive Outcome Expectations on Physical Activity of University Students During Exams

People who approve of one's physical activity vs. people who are influential: A randomized cross-over experiment to compare normative referent elicitation procedures

OBJECTIVES

To compare injunctive norm scores assessed based on Ajzen's (2002) original normative referent elicitation method (e.g., norms from those who approve/disapprove of physical activity) and a revised method (e.g., norms from those who are personally influential).

METHODS

Undergraduate students (NT1 = 1008, NT2= 383) were initially randomly assigned to either the condition that used Ajzen's original method or the condition that used the revised method, and completed an online survey. A month later, participants completed the survey in the reverse condition. Data collection occurred October 2021-July 2022. Data were analyzed to examine the differences between the two conditions regarding the mean injunctive norm scores and their indirect effects on physical activity via intentions (i.e., moderated mediation).

RESULTS

Mixed ANOVA results indicated a statistically significant effect of condition (p < .001): the injunctive norm score assessed based on the revised method was lower compared to the original method. After accounting for baseline physical activity, a statistically significant moderated mediation was found with intention strength as the mediator (95% bootstrap CIs [.02, .20]): there was a statistically significant indirect effect of injunctive norms on physical activity via intention strength under the revised condition, but this effect was statistically nonsignificant under the original condition. There was no statistically significant moderated mediation with decisional intention as the mediator (95% bootstrap CIs [-.04, .13]).

CONCLUSIONS

Null findings regarding the relationship between injunctive norms and physical activity intentions typically found in the literature may be partially explained by the way in which norms were measured.

How appraisals of an in-group's collective history shape collective identity and action: Evidence in relation to African identity

This research tested the impact of how group members appraise their collective history on in-group identification and group-based action in the African context. Across three experiments (Ns = 950; 270; and 259) with Nigerian participants, we tested whether the effect of historical representations-specifically the valence of the in-group's collective history-on in-group engagement, in turn, depends on whether that history is also appraised as subjectively important. In Study 1, findings from exploratory moderated-mediation analyses indicated that the appraised negative valence of African history was associated with an increase in identification and group-based action when African history was appraised as unimportant (history-as-contrast). Conversely, the appraised positive valence of African history was also associated with an increase in identification and group-based action when African history was also appraised as important (history-as-inspiration). Studies 2a and 2b then orthogonally manipulated the valence and subjective importance of African history. However, findings from Studies 2a and 2b did not replicate those of Study 1. Altogether, our findings suggest that the relationship between historical representations of groups and in-group identification and group-based action in the present is more complex than previously acknowledged.

Injunctive norms as social pressures: Does autonomy support moderate the relationship between injunctive norms and autonomy satisfaction in physical activity?

Objective: Despite the usefulness of social norms for changing behaviour, injunctive norms (i.e., perceptions of what others approve) from significant others tend to be a weak predictor of physical activity (PA) engagement. A potential explanation is that injunctive norms encompass pressuring social influence that undermines autonomous PA engagement. This study examined whether injunctive norms from significant others undermine individuals' autonomy satisfaction during the pursuit of PA engagement, and whether this effect is moderated by the degree to which significant others offer concurrent autonomy support. Design: Online questionnaires. Measures: Participants' perceptions of injunctive norms and autonomy support from significant others, autonomy satisfaction, behaviour regulation, PA intentions, and weekly PA frequency were assessed at baseline (N = 497) and after two weeks (N = 351). Results: Autonomy support positively related to autonomy satisfaction, whereas injunctive norms were negatively related to autonomy satisfaction. Though the statistical significance of interaction effects was inconsistent across results, simple slopes suggested that the negative relationship between injunctive norms and autonomy satisfaction was attenuated at higher levels of autonomy support in models focusing on influence from parents and friends. Conclusion: When promoting others' PA, communicating direct social expectations/pressures may be ineffective.

Relationship between Psychosocial Factors and Physical Activity among Undergraduate Students from a South African University

Psychosocial factors such as mental health, motivation, and social support are key determinants of behavior that play a significant role in physical activity participation. Limited studies have investigated the relationship between psychosocial factors and physical activity among university students in Africa. The aim of this study was to determine the relationship between psychosocial factors and physical activity participation among undergraduate university students at a historically disadvantaged university (HDU) in South Africa. This was a cross-sectional study that used convenience sampling (n = 534, majority female, 53.6% with a mean age of 20.69). The study was conducted through an online, self-administered, and hard-copy, valid questionnaire in September 2022. Data on sociodemographic information were collected. Psychosocial factors were assessed using the Depression, Anxiety, and Stress-21 Scale for mental health, the Physical Activity and Leisure Motivation Scale for motivation, and the Perceived Social Support Scale for social support. Physical activity (calculated as MET-min/week) was assessed using the international physical activity questionnaire in short form. Results revealed that almost a third (29%) of undergraduate students were physically inactive, 31.1% were minimally active, and 39.9% were in the health-enhancing category. Physical activity was positively related to stress (r = 0.11, p < 0.05) and anxiety (r = 0.10, p < 0.05). Motivational factors were positively related to psychological condition and others' expectations (r = 0.10, p < 0.05), and depression and others' expectations (r = 0.11, p < 0.05). Results from this study highlighted that psychosocial factors were related to physical activity participation among undergraduate university students. Psychosocial factors should be considered a coping mechanism when implementing health-promoting strategies.

To move or not to move while on campus: Examining the influence of others

OBJECTIVE

To examine the influence of dynamic and trending descriptive norms on increasing physical activity and decreasing the sedentary behaviors of university students while on campus.

PARTICIPANTS

One-hundred fifty-six university students from a Canadian university completed this study.

METHODS

Participants were randomly assigned to receive one of four online messages containing normative information about the on-campus behavior of university students. On-campus physical activity and sedentary behavior were measured pre- and post-message.

RESULTS

The results revealed that students exposed to the trending norm reported a greater decrease in sedentary behavior than students in the control condition, p = .007.

CONCLUSION

Results provide preliminary experimental evidence that trending norm messages may serve to decrease the sedentary behavior of students while on campus.

Attraction toward physical activity as a moderator of socio-cognitive predictors of physical activity

Previous research highlighted gaps between socio-cognitive factors (e.g., intentions, social norms) and physical activity (PA) participation. Recently, researchers have asserted that considering affective processes may help bridge this gap. Leveraging the affective-reflective theory of physical inactivity and exercise, this study examined whether individuals' attraction toward PA moderated the relationship between PA intentions and behaviors, and the relationship between social norms and PA intentions. Analysis of online survey data (NT1 = 582; NT2 = 327) provided evidence that social norms more strongly predicted PA intentions under conditions of lower attraction to PA. However, the results differed depending on how intentions were measured: Moderation was found for intention strength as the outcome, but no moderation was found for decisional intention as the outcome. The intentions-behavior relationship, despite nonsignificant interaction terms, showed patterns of positive moderation based on changes in simple slopes: Intentions more strongly predicted PA behavior at time 2 under conditions of higher attraction to PA. The findings align with recent theorizing that emphasizes the role of affect-related determinants when understanding and promoting PA. Practically, these results suggest that intervention strategies should differ according to the individuals' current levels of attraction toward PA.

Investigating the role of communication between descriptive norms and exercise intentions and behaviors: findings among fitness tracker users

This study investigates the relationship between fitness tracker users' communication of exercise information and their exercise intentions and behaviors among college students. Participants: Data were collected from 186 undergraduate students. Methods: A quantitative online survey was conducted. Descriptive norm (perceptions of prevalence of others' behaviors), communication (including exercise information giving and exercise information receiving), exercise behaviors, and exercise intentions were measured with reliable scales. Results: Both exercise information giving and information receiving were positively associated with exercise behaviors and intentions. Information giving moderated the association between descriptive norms and exercise intentions and behaviors, while information receiving moderated the association between descriptive norms and exercise intentions. Conclusion: The interaction effect between descriptive norm and communication suggests that health educators and campaign designers should focus on descriptive norm of exercise for college students who have limited communication activities. It is important to find innovative ways to promote positive health behaviors.

Examining the impact of weight bias on the association between exercise identity and maladaptive exercise behaviors

OBJECTIVE

Though exercise behaviors are typically viewed as health-promoting, certain forms of exercise (i.e., excessive exercise, unhealthy muscle-building behaviors) are considered maladaptive and are associated with negative physical and psychological outcomes. Psychosocial factors may put people at greater risk for engaging in maladaptive exercise. Based on deviance regulation theory, weight bias was examined as a potential moderator of the association between exercise identity and both excessive exercise and muscle-building behaviors.

DESIGN

The current study is a secondary analysis of a larger data set investigating associations between athletic identity, exercise behaviors, and disordered eating behaviors. Hypotheses were examined using moderation testing in multiple linear regression.

MAIN OUTCOME MEASURES

Participants (N = 225, 50.2% female) completed the Eating Pathology Symptoms Inventory as a measure of maladaptive exercise.

RESULTS

Controlling for sex, age, athlete status, and body mass index, weight bias moderated the association between exercise identity and both excessive exercise and muscle-building behaviors. Among individuals with high exercise identity, higher weight bias was associated with increased maladaptive exercise behaviors.

CONCLUSION

Individuals with higher exercise identity and higher weight bias may be at greatest risk of engaging in maladaptive exercise. Preventive interventions for maladaptive exercise behaviors may consider targeting exercise identity and weight bias.

Parents' and Peers' Autonomy Support and Exercise Intention for Adolescents: Integrating Social Factors from the Self-Determination Theory and the Theory of Planned Behaviour

Based on the theory of planned behaviour and self-determination theory, the objective of the present study was to analyse the relationship between (i) parents' and peers' autonomy support, and (ii) exercise intention in adolescents, while also considering the mediating role of attitude, control, subjective norms, and descriptive norms. A total of 428 secondary school students, aged between 13 and 19 years old (Mage = 15.30, SD = 1.15), filled in a questionnaire assessing the variables of interest. The relationships between the study variables were examined through a mediation model with bootstrapping technique (20,000 samples) using Mplus v. 7 software. The results showed that the perception of parents' autonomy support was positively and statistically significant associated with exercise intention; this occurring indirectly through attitude and control both in boys and girls, as well as through subjective norms in the case of girls. Conversely, the perception of peers' autonomy support was positively and statistically significant associated with exercise intention; this occurring directly both in boys and girls, as well as indirectly through attitude in the case of girls. These findings suggest that, by involving a form of pressure (i.e., subjective/descriptive norms), perceptions of autonomy support may play a more important role than other forms of social influence in predicting exercise intention in adolescents.

Haptic input and balance control: An exploratory study examining normative messaging

This study examined the effect of descriptive norm messaging information on the relationship between haptic input and balance control. Participants were randomly assigned to either a message group where they balanced with haptic input after receiving a descriptive norm message about the positive effect of haptic input or a control group. Findings from an analysis of covariance revealed a significant difference between the two groups. Those in the descriptive norm message group had better balance control than those in the control group. These findings suggest that efforts designed to improve balance control through haptic input may be enhanced through normative messaging.

An Exploratory Study Examining the Interactive Effect of Descriptive Norm and Image Appeal Messages on Adults' Physical Activity Intentions: A Test of Deviation Regulation Theory

This exploratory study examined the interaction between messages conveying descriptive norms and image appeals on adults' physical activity intentions. Using a pre-post experimental design, insufficiently active adults (N = 204) were randomly assigned to receive one of four messages, which included both a descriptive norm (prevalence of physical activity: high vs. low) and an image appeal (personality attributes: positive vs. negative). The results from an analysis of covariance, controlling for baseline physical activity intentions, revealed a significant interaction. Post-hoc analyses indicated that when the image appeal was positive, those who received the low descriptive norm had greater physical activity intentions than the high descriptive norm condition. No significant interaction was found for negative image appeals. Results provide preliminary evidence that physical activity intentions can be positively influenced even when physical activity is not considered the norm. Messages that include low descriptive norm information may benefit from including positive image appeals of those who do engage in physical activity, if aiming to increase physical activity intentions in insufficiently active adults.

An exploratory experimental study examining the short-term effects of a public service announcement on parents' perceptions of the descriptive norm for children's outdoor play: A cautionary tale

ISSUE ADDRESSED

Public service announcements (PSA) targeting physical activity are not always effective at enacting behaviour change. One factor that may impact message effectiveness is whether the message matches its intent (ie, what norm is being portrayed and received). The current study explored the effects of two PSAs on parents' perceptions of outdoor play.

METHODS

Parents (N = 333) completed a pre/postexperimental online survey to examine the acute impact of a PSA on their perception of how often children play outdoors (ie, descriptive norms). Participants provided their descriptive norm perceptions and then were randomised to view one of two PSAs: (a) the Mr. Lonely PSA, which portrayed outdoor activity as not normative, and (b) a control message, which portrayed outdoor activity as the norm (VERB PSA). After viewing their PSA, descriptive norm perceptions were reported again.

RESULTS

A two-way mixed ANOVA indicated that participants who viewed the Mr. Lonely PSA (where outdoor play was not normative) perceived that children and youth played outdoors less frequently immediately after watching the PSA compared to before viewing it (P < 0.05). No significant change occurred in the control condition.

CONCLUSIONS

PSAs can alter individuals' perceptions of whether they perceive outdoor play as normative among children and youth. SO WHAT?: As individuals align their behaviour with what is typical, PSA developers should be wary of what message is being conveyed. In terms of activity, portraying that outdoor play is not normative may not have the intended outcome.