Social Media and Adolescents' Prosocial Behavior: Evidence of the Interaction Between Short Videos and Social Value Orientation.

Background/Objective: Social media significantly influences adolescents' prosocial behavior. With smartphones becoming ubiquitous, short videos have emerged as the predominant social media format for adolescents. However, the effects of adolescents' engagement with short videos on their prosocial behavior remain uncertain. This study aims to address the problem of how short videos (content and consequences) affect prosocial behavior in adolescents, and simultaneously explores the differences of this effect among individuals with different social value orientations. Methods: The current study conducted two research laboratory experiments using the between-subject study design of two factors. Study 1 (N=148) reveals that viewing prosocial short videos significantly predicts adolescents' prosocial behavior more so than neutral short videos. The interaction between short video content and social value orientation on prosocial behavior illustrates that the encouraging impact of prosocial content is primarily evident in prosocial individuals, rather than in pro-self individuals. In Study 2 (N=152), we introduce new dimensions by assessing adolescents' response to varying consequences of the same prosocial behavior (ie, reward, punishment) within the short video context. Findings indicate that reward consequences significantly bolster adolescents' prosocial behavior, whereas punitive measures tend to adversely affect it. Furthermore, the interaction between the consequences of prosocial short videos and social value orientation suggests that prosocial individuals exhibit no significant behavioral difference between rewards and punishments; instead, the reward/punishment consequences notably influence the prosocial behavior of pro-self individuals. Conclusion: Short videos (content and consequences) and social value orientations interactively influence adolescents' prosocial behaviors. This study underscores the need to recognize individual differences in adolescents' use of short videos and its impact on their prosocial behavior, particularly highlighting the crucial role of their social value orientations. Practically, the research offers valuable insights for parents and professionals seeking to foster adolescents' prosocial behavior.

Distributive fairness during the transition to adolescence: The role of peer comparison and social value orientation.

Combining the dictator game (DG) and the ultimatum game (UG), this study recruited 546 Chinese children (321 boys, aged 9-12 years) as distributors, and found that both peer comparison and social value orientation (SVO) significantly influenced children's distributive fairness from late childhood to early adolescence. Results showed that as the unfairness of peer proposals increased, participants decreased the amount of gold coins distributed to the receiver in both tasks, revealing a peer comparison effect. This effect was more pronounced for adolescents than for children in both tasks. In addition, participants' fair distribution behaviors in the DG showed a three-way interaction effect of SVO, grade, and peer comparison. Specifically, for proselfs, children were not influenced by peers and consistently proposed self-interested distributions, whereas adolescents exhibited a peer comparison effect; for prosocials, both children and adolescents were influenced by peers, but children decreased the amount of their distributions only when they saw peers make extremely unfair distributions, whereas adolescents decreased the amount of their distributions when they saw peers make both mildly and extremely unfair distributions. This study highlights the importance of social environment and personal trait in shaping children's fair distribution behavior during the transition from late childhood to early adolescence.

Wait or Pass? Promoting intersection's cooperation via identifying vehicle's social behavior.

Lack of communication between road users can reduce traffic efficiency and cause safety issues like traffic accidents. Researchers are exploring how intelligent vehicles should communicate with the environment, other vehicles, and road users. This study explores the impact of social information communication on traffic safety and efficiency at intersections through vehicle-to-vehicle (V2V) communication. The research examines how these factors influence drivers' decision-making and cooperative behavior by incorporating social value orientation (SVO) and driving agent identity into V2V systems and automated vehicle (AV) decision-support systems. An experimental platform simulating intersection conflict scenarios was developed, and three studies involving 334 participants were conducted. The findings reveal that providing drivers with social information about opposing vehicles significantly promotes cooperative behavior and safer driving strategies. Specifically, the waiting rate for people facing proself vehicles (Mean = 0.22) is significantly higher than when facing prosocial vehicles (Mean = 0.79). When SVO is unknown, the waiting rate is around 0.5. Participants behaved more waiting when confronted with an AV than human-driven vehicles. With AV recommendations based on SVO, participants' final waiting rate increases as the recommended waiting rate increases. The optimal recommended waiting rate for AV is most acceptable when it matches the average waiting rate of the other vehicle. This research underscores the importance of integrating social information into V2V communication to improve road safety, aiding in designing automated decision-making strategies for AV and enhancing user satisfaction.

Understanding food waste sorting behavior in institutional food services: An integrated psychological framework.

Food waste from institutional food services accounts for a significant part of global food waste. Food waste sorting (FWS) at the source reduces waste management costs and environmental impacts in organizations. Yet what drives individual FWS behavior remains underexplored. This study explores the psychological process of FWS in institutional catering environments, integrating the value-belief-norm model, the theory of planned behavior, and self-determination theory. Data were collected from 431 university students in China and analyzed using partial least squares structural equation modeling (PLS-SEM). Results indicated the interplay of values, beliefs, norms, and motivations in shaping FWS behaviors. Social value orientations (SVO) indirectly affected FWS through awareness of consequences and personal norms. Subjective norms, potentially attributed to external regulations in canteens, influenced FWS intention through personal norms and induced FWS primarily via controlled motivations. The findings imply that behavioral strategies to induce FWS may leverage social influence and external regulation while also translating values and knowledge into intrinsic motivations through educational programs and awareness campaigns.

The importance of trust and altruistic social orientation for COVID-19 distress.

BACKGROUND: The COVID-19 pandemic, the biggest global health crisis in decades, has been a difficult experience for nations all over the world. In the present study we wanted to assess to what extent a positive attitude towards others, expressed in altruistic social orientation and a high level of trust, would be linked to lower levels of COVID-19 distress in infected and non-infected individuals. PARTICIPANTS AND PROCEDURE: A total 405 individuals (180 women, 44%), aged 18-60 (M = 38.91, SD = 11.02) participated in the study. Respondents were recruited by a research platform. The following questionnaires were completed: the Subjective Happiness Scale, Generalized Trust Scale, survey about COVID-19, social value orientations. RESULTS: The analysis showed that in non-infected high trustors the relationship between altruistic social orientation and COVID-19 distress was significant - the more they were willing to benefit others, the less distress they felt. The reverse effect was observed for infected high trustors - the more altruistic social orientation they expressed, the higher the level of COVID-19 distress they declared. CONCLUSIONS: Our findings shed some light on the importance of a positive attitude towards others in assessing the emotional outcomes of the COVID-19 pandemic. They also imply that people who have experienced the COVID-19 disease can suffer from distress differently than people who have not been affected.

Volunteering intentions during social crises: The role of considering the welfare of others and consequences of own behavior.

In the current paper, we investigate how people with experience with volunteering in their lifetime intend to engage in hypothetical crisis volunteering in the future. We took into account two types of hypothetical social crises: a pandemic and a refugee crisis. We suggest that individual differences in considering the welfare of others (social value orientation) and consideration of future/immediate consequences play a role in the volunteer responses to crises. We also control for the willingness to volunteer in the proximal (a month) and distal (3 years) future, gender, age, and length of volunteer experience. We conducted two survey-based online studies in October 2023. We recruited N = 287 people for Study 1 (Poland) and N = 231 for Study 2 (Italy). Our results suggested that people who declare they want to remain volunteers intend to engage during social crises, but not necessarily in a proactive way. Furthermore, consideration of future consequences can result in proactivity, which was especially visible in the Italian sample. Consideration of immediate consequences can have twofold correlates - one might be the engagement in volunteering in case of a sudden emergency or refraining from the voluntary activity. These results can be used by people leading volunteer activities to predict what to expect from their volunteers and plan the volunteer recruitment and retention processes during crises.

Future of nature, our future. A preregistered report on future time perspective, social value orientation, and pro-environmental outcomes based on data from Poland and Sweden.

Introduction: The objective of the study was to examine the role of social value orientation and future time perspective to account for individual differences in pro-environmental behaviors, intentions, and opinions about the link between pro-environmental action and pandemic threat (three separate models) in Polish and Swedish samples expected to differ in rate of pro-environmental behaviors (higher in Sweden). We hypothesized that for Poland, future time perspective would be linked to pro-environmental outcomes only when social value orientation is average or high. In contrast, for Sweden, we expected a significant link between these variables regardless of social value orientation. Methods: In total, 301 (150 Polish, 151 Swedish) participants completed online surveys via Prolific.co research panel. We controlled for individualizing/binding moral foundations, present time perspectives, and selected demographic variables in the analyses. Results: In line with expectations, the individualizing moral foundations were a significant predictor across all three models. The data did not support our focal hypothesis regarding the interaction between future time perspective and social value orientation. For pro-environmental behaviors in the past 6 months, the future time perspective was a predictor only when social value orientation was low. Discussion: The results suggest that when encouraging more competitive (compared to altruistic) people to behave in a green way, it might be crucial to underline the future consequences and benefits, consistent with the future time perspective. The pro-environmental campaigns could, therefore, highlight how green behavior may bring personal gains in the future, which are typically valued by individualistic people, such as savings or social status.

A downstream social norms approach for curtailing e-cigarette waste: Promising social marketing interventions from consumer interactions.

Irresponsibly disposed electronic cigarette (e-cigarette) waste poses significant public health and environmental harm. This study explores downstream social marketing interventions that can be used to curtail the growth of e-cigarette waste in South Africa through the lenses of the social norms approach. This study harnesses the power of social marketing to identify downstream interventions that can be used by marketers to curb the problem of e-cigarette waste. An exploratory research design and a qualitative method were employed. Six virtual focus groups were conducted to collect cross-sectional data from South African electronic cigarette users. Reciprocal altruism, social orientation value, moral licensing and ecological beliefs were found to be the main normative influences that characterise e-cigarette waste. The results support the proposition that social marketers should employ a downstream approach to develop interventions to curtail the growth of e-cigarette waste. Such measures are envisaged to complement upstream initiatives. This study offers new insights on how to manage e-cigarette waste in the context of an emerging market.

Social value orientation modulates behavioral and neural responses to social influence.

Substantial studies have investigated the social influence effect; however, how individuals with different social value orientations (SVOs), prosocials and proselfs, respond to different social influences remains unknown. This study examines the impact of positive and negative social information on the responses of people with different SVOs. A face-attractiveness assessment task was employed to investigate the relationships between influence probability, memory, and event-related potentials of social influence. A significant interactional effect suggested that prosocials and proselfs reacted differently to positive (group rating was more attractive) and negative (group rating was less attractive) social influences. Specifically, proselfs demonstrated significantly higher influence probability, marginally better recall performance, smaller N400, and larger late positive potential on receiving negative influence information than on receiving positive influence information, while prosocials showed no significant differences. Overall, correlations between N400/LPP, influence probability, and recall performance were significant. The above results indicate the modulating role of SVO when responding to social influence. These findings have important implications for understanding how people conform and how prosocial behavior occurs.

Public's awareness of biobanks and willingness to participate in biobanking: the moderating role of social value orientation.

Although the awareness of biobanks is considered to be a key factor in the willingness to participate in biobanking, the empirical evidence on their relationship is inconsistent. The present study investigated social value orientation as an explanatory factor in this relationship. A representative sample of 600 Slovaks completed Slider Measure to assess their social value orientation. Thereafter, they reported their level of awareness of biobanks and their willingness to provide biospecimens and personal information to biobanks. The results showed a positive relationship between awareness and willingness. Although social value orientation was not the moderator, we found that this relationship was significant only in the groups of altruists and individualists. The results remained robust after taking sociodemographic and institutional trust factors into account. Our findings imply that biobank awareness programmes should highlight both prosocial and proself motives to attract people with various social value orientations to participate in biobanking.

Right dorsolateral prefrontal cortex regulates default prosociality preference.

The dorsolateral prefrontal cortex has been shown to be associated with prosocial behavior. However, the direction of this relationship remains controversial. To resolve inconsistencies in the existing literature, we introduced the concept of default prosociality preference and hypothesized that this preference moderates the relationship between gray matter volume in the dorsolateral prefrontal cortex and prosocial behavior. This study analyzed the data of 168 participants obtained from voxel-based morphometry, 4 types of economic games, and 3 different measures of social value orientation that represent default prosociality preference. Here we show that, in individuals who were consistently classified as proself on the 3 social value orientation measures, gray matter volume in the right dorsolateral prefrontal cortex was positively associated with prosocial behavior. However, in individuals who were consistently classified as prosocial, the direction of this association was vice versa. These results indicate that the right dorsolateral prefrontal cortex regulates default prosociality preference.

Intuitive thinking impedes cooperation by decreasing cooperative expectations for pro-self but not for pro-social individuals.

This study conducted two experiments to explore the effects of intuitive thinking and social value orientation (SVO) on cooperative behavior and assess the mediating effect of cooperative expectations. It manipulated intuitive thinking by increasing the participants' need for cognitive closure, classified SVO using the triple-dominance measure, measured cooperative behavior using the prisoner's dilemma game, and considered cooperative expectations based on participants' assessments of the cooperativeness of their counterparts. Both experiments showed that intuitive thinking increased and decreased the cooperation of pro-social and pro-self individuals, respectively. In pro-self individuals, cooperative expectations mediated the effect of intuitive thinking on cooperation.

The Dispositional Essence of Proactive Social Preferences: The Dark Core of Personality vis-à-vis 58 Traits.

Individuals differ in how they weigh their own utility versus others'. This tendency codefines the dark factor of personality (D), which is conceptualized as the underlying disposition from which all socially and ethically aversive (dark) traits arise as specific, flavored manifestations. We scrutinize this unique theoretical notion by testing, for a broad set of 58 different traits and related constructs, whether any predict how individuals weigh their own versus others' utility in proactive allocation decisions (i.e., social value orientations) beyond D. These traits and constructs range from broad dimensions (e.g., agreeableness), to aversive traits (e.g., sadism) and beliefs (e.g., normlessness), to prosocial tendencies (e.g., compassion). In a large-scale longitudinal study involving the assessment of consequential choices (median N = 2,270; a heterogeneous adult community sample from Germany), results from several hundred latent model comparisons revealed that no meaningful incremental variance was explained beyond D. Thus, D alone is sufficient to represent the social preferences inherent in socially and ethically aversive personality traits.

Narcissism moderates the association between basal testosterone and generosity in men.

Research has linked hormones to behavioral outcomes in intricate ways, often moderated by psychological dispositions. The associations between testosterone and antisocial or prosocial outcomes also depend on dispositions relevant to status and dominance. In two studies (N1 = 68, N2 = 83), we investigated whether endogenous testosterone, measured in saliva, and narcissism, a psychological variable highly relevant to status motivation, interactively predicted men's preferences regarding resource allocation. Narcissism moderated the links between testosterone and social value orientation: among low narcissists testosterone negatively predicted generosity in resource allocation and probability of endorsing a prosocial (vs. pro-self) value orientation, whereas among high narcissists testosterone tended to positively predict generosity and the probability of endorsing a prosocial (vs. pro-self) value orientation. We discuss these results as examples of calibrating effects of testosterone on human behavior, serving to increase and maintain social status. We advocate the relevance of psychological dispositions, alongside situations, when examining the role of T in social outcomes.

Medida Decomposta de Valor Social: uma alternativa baseada na Teoria dos Jogos / Decomposed Social Value Measure: an alternative based on Game Theory / Medida Descompuesta de Valor Social: una alternativa basada en la Teoría de Juegos

Orientação de valor social (OVS) é uma característica individual que expressa o valor que se atribui aos ganhos individuais e aos gerados às outras pessoas, revelando disposição para sacrificar interesses pessoais. O presente estudo teve como objetivo adaptar e reunir evidências de validade para a Decomposed Social Value Orientation Slider Measure, como alternativa a instrumentos tradicionais de autorrelato. A amostra foi composta por 176 respondentes, que responderam à medida adaptada, à Escala de Cooperação e Competitividade e a uma versão impressa do dilema do prisioneiro. Os resultados mostraram que a medida se correlacionou negativamente com atitudes competitivas. Não houve diferenças significativas nos escores de OVS em função das escolhas no dilema dos prisioneiros. São discutidas as propriedades psicométricas do instrumento, as limitações e potenciais usos nas pesquisas sobre dilemas sociais e cooperação.(AU)

Social Value Orientation (SVO) is an individual characteristic that expresses the value one attributes to their own and other people's results, while revealing the disposition to sacrifice personal interests. The present study aimed to adapt and gather evidence of validity for the Social Value Orientation Slider Measure, as an alternative to traditional self-report instruments. Participants (N=176) answered the measure, the Cooperation-Competitiveness Scale, and a printed version of the prisoner's dilemma. The SVO was negatively correlated with competitive attitudes. There were no differences in SVO scores based on the prisoner's dilemma choices. The psychometric properties of the measure and its limitations and potential uses in social dilemma and cooperation research, are discussed.(AU)

La orientación al valor social (OVS) es una característica individual que expresa el valor atribuido a los beneficios individuales y a los beneficios generados a otras personas, revelando una disposición a sacrificar intereses personales. El presente estudio tuvo como objetivo adaptar y reunir evidencias de validez para la Decomposed Social Value Orientation Slider Measure, como alternativa a los instrumentos tradicionales de autoinforme. La muestra se conformó por 176 personas, que respondieron a la medida adaptada, a la Escala de Cooperación y Competitividad y a una versión impresa del dilema del prisionero. Los resultados mostraron que la medida se correlacionó negativamente con las actitudes competitivas. No hubo diferencias significativas en las puntuaciones de la OVS en función de las elecciones en el dilema del prisionero. Se discuten las propiedades psicométricas del instrumento, las limitaciones y los usos potenciales en la investigación sobre dilemas sociales y cooperación.(AU)

Does similarity trigger cooperation? Dyadic effect of similarity in social value orientation and cognitive resources on cooperation.

Although a considerable amount of research has demonstrated a robust relationship between social value orientation and cooperation, these studies may be limited by focusing solely on the individual. Building on the growing literature documenting the effect of group formation on cooperation and personality similarity on negotiation, the present study explored whether similarity in social value orientation (both being pro-social or pro-self) leads to more cooperation in social dilemmas among dyad members. Drawing from expectancy theory and the concept of cognitive resources, we further predicted that the relationship between similarity in social value orientation and cooperation uniquely depends on whether the individual is cognitively busy. To test our hypothesis, we grouped our participants according to their social value orientation into three different dyads (similar-pro-self, similar-pro-social, and pro-self-pro-social) to complete a repeated prisoner's dilemma task, and controlled their cognitive resources using a simultaneous digit memory task. The results suggested that (1) heterogeneous dyads' (pro-self-pro-social) cooperation possibility experience a steeper decay as the number of rounds increases compared with the two homogeneous dyads (similar-pro-self, similar-pro-social). In addition, (2) similarity in social value orientation, interacting with participants' cognitive resources, significantly influenced individual-level cooperation. Specifically, both pro-selfs and pro-socials, paired with unlike-minded counterparts, were more cooperative when they had abundant cognitive resources. However, cognitive resources had no significant influence on dyads with similar social value orientation. Overall, these findings demonstrate the importance of considering personality configuration when attempting to understand cooperation in social dilemmas among dyads. Supplementary Information: The online version contains supplementary material available at 10.1007/s12144-022-03276-8.

Revisiting Social Value Orientations and Environmental Attitude-Identity-Intention in Decomposed Games.

Past research has identified social value orientation (e.g., prosocial vs. proself) as possible underlying facilitators of pro-environmental intentions. However, recent studies have failed to draw a causal relationship using an experimental design such as priming. The current study attempted to address this issue by revisiting the relationship using a decomposed game. In addition, the current study extended the relationship between social value orientation and different aspects of pro-environmentalism (e.g., environmental attitude, identity, and self-reported pro-environmental intention). The "Attitude-Identity-Intention" path was explored in prosocial and proself groups. One hundred and fifty participants completed the decomposed game (prosocial and proself value orientations) and their respective environmental attitude, identity, and self-reported pro-environmental intentions (PEIs) were compared. We found that prosocial participants had higher levels of environmental identity, attitude, and self-reported participatory PEIs than proself participants, but not on the leadership PEIs. In addition, environmental identity mediated the relationship between environmental attitude and self-reported PEIs. This mediation only existed among the prosocial participants. The results suggest that the decomposed game is still a valid measure in social value orientation and the relationship can be extended to different aspects of environmentalism.

Social Value Orientation Moderated the Effect of Acute Stress on Individuals' Prosocial Behaviors.

Acute stress is believed to lead to prosocial behaviors via a "tend-and-befriend" pattern of stress response. However, the results of the effect of acute stress on prosocial behavior are inconsistent. The current study explores the moderating effect of gender and social value orientation on the relationship between acute stress and individuals' pure prosocial behaviors (i.e., pure prosociality and prosocial third-party punishment). Specifically, eighty-one participants were selected and underwent the Trier Social Stress Test (or were in the control group), followed by the third-party punishment task and the dictator game. The results showed that, in general, the main effect of condition or respiratory sinus arrhythmia (RSA) reactivity on individual prosocial behaviors was significant and did not vary between genders. Furthermore, social value orientation (i.e., prosocial or self-orientation) might moderate the impact of RSA reactivity on the amount of punishment in the third-party punishment task. That is, individuals with self-orientation exhibited more prosocial third-party punishment as RSA reactivity decreased, while the effect did not occur for individuals with prosocial orientation. Taken together, the findings of the current study provide further evidence for the "tend-and-befriend" hypothesis and highlight the underlying physical mechanisms as well as the individual dependence of the effect of psychosocial stress on individuals' pure prosocial behaviors.

Knowing me, knowing you: Interpersonal similarity improves predictive accuracy and reduces attributions of harmful intent.

To benefit from social interactions, people need to predict how their social partners will behave. Such predictions arise through integrating prior expectations with evidence from observations, but where the priors come from and whether they influence the integration into beliefs about a social partner is not clear. Furthermore, this process can be affected by factors such as paranoia, in which the tendency to form biased impressions of others is common. Using a modified social value orientation (SVO) task in a large online sample (n = 697), we showed that participants used a Bayesian inference process to learn about partners, with priors that were based on their own preferences. Paranoia was associated with preferences for earning more than a partner and less flexible beliefs regarding a partner's social preferences. Alignment between the preferences of participants and their partners was associated with better predictions and with reduced attributions of harmful intent to partners. Together, our data and model expand upon theories of interpersonal relationships by demonstrating how dyadic similarity mechanistically influences social interaction by generating more accurate predictions and less threatening impressions.

Volunteerism in the last year as a moderator between empathy and altruistic social value orientation: an exploratory study.

BACKGROUND: Volunteerism is a sustained prosocial activity, and young adults are one of the most important targets for organizations recruiting volunteers. Empathy and altruistic social value orientation measured by a decomposed game are dispositional traits that might foster engagement in volunteerism. PARTICIPANTS AND PROCEDURE: Using a self-report online-based questionnaire study on two groups of young adults (aged 18-35, N = 224 non-volunteers and N = 178 volunteers in the last year) the relationship between empathy and altruistic social value orientation in both of these groups was explored. RESULTS: The results showed that volunteers scored significantly higher on empathy and altruistic social value orientation than non-volunteers. In non-volunteers, empathy is positively linked to altruistic social value orientation, whereas for volunteers the relationship is inversed. CONCLUSIONS: The results provide evidence that volunteers, when high on empathy, might not necessarily be ready to share financial resources with others, as operationalized by a decomposed game.