Ergiyen, Tolga
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ERGIYEN, TOLGA
Job Title
Email Address
tolgaergiyen@gmail.com
tolga.ergiyen@ieu.edu.tr
tolga.ergiyen@ieu.edu.tr
Main Affiliation
02.04. Psychology
Status
Current Staff
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ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Sustainable Development Goals
5
GENDER EQUALITY
1
Research Products
9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
1
Research Products
13
CLIMATE ACTION
0
Research Products
8
DECENT WORK AND ECONOMIC GROWTH
0
Research Products
14
LIFE BELOW WATER
0
Research Products
17
PARTNERSHIPS FOR THE GOALS
0
Research Products
1
NO POVERTY
0
Research Products
2
ZERO HUNGER
0
Research Products
4
QUALITY EDUCATION
1
Research Products
11
SUSTAINABLE CITIES AND COMMUNITIES
0
Research Products
16
PEACE, JUSTICE AND STRONG INSTITUTIONS
1
Research Products
3
GOOD HEALTH AND WELL-BEING
0
Research Products
6
CLEAN WATER AND SANITATION
0
Research Products
12
RESPONSIBLE CONSUMPTION AND PRODUCTION
0
Research Products
10
REDUCED INEQUALITIES
0
Research Products
15
LIFE ON LAND
0
Research Products
7
AFFORDABLE AND CLEAN ENERGY
0
Research Products
Documents
7
Citations
48
h-index
3
Documents
6
Citations
35
Scholarly Output
10
Articles
10
Views / Downloads
24/7
Supervised MSc Theses
0
Supervised PhD Theses
0
WoS Citation Count
35
Scopus Citation Count
48
WoS h-index
2
Scopus h-index
3
Patents
0
Projects
0
WoS Citations per Publication
3.50
Scopus Citations per Publication
4.80
Open Access Source
6
Supervised Theses
0
| Journal | Count |
|---|---|
| Current Psychology | 3 |
| Cyberpsychology-Journal of Psychosocıal Research on Cyberspace | 1 |
| Internatıonal Journal of Socıal Psychology | 1 |
| Journal of Open Psychology Data | 1 |
| Psicologia Sociale | 1 |
Current Page: 1 / 2
Scopus Quartile Distribution
Competency Cloud
10 results
Scholarly Output Search Results
Now showing 1 - 10 of 10
Article Perceived Person-Group Alignment and Collective Action Intentions in Environmental Movements(Springer, 2025) Ergiyen, Tolga; Akfirat, SerapAddressing environmental destruction requires collective action, as its escalating impact on ecosystem sustainability continues to intensify due to global warming. Effective collective efforts depend on interactions among individuals within groups, underscoring the importance of person-group fit dynamics in motivating group members. The present study examines how person-group fit, specifically, congruence and discrepancy, influences socio-structural factors (stability and legitimacy) and psychosocial factors (moral conviction, anger, and collective efficacy) in predicting intentions to engage in environmental collective action. We collected data from 261 individuals who self-identified as environmentalists. Polynomial regression and response surface analyses revealed significant congruence effects for legitimacy, moral conviction, anger, and collective efficacy. Participants whose perceptions aligned with their group at high levels of these factors reported the strongest intentions to act, whereas congruence at low levels was associated with weaker intentions. We also observed significant discrepancy effects for legitimacy, moral conviction, and collective efficacy, indicating that individual perceptions exerted a stronger influence on collective action intentions than group perceptions when the two were misaligned. These findings demonstrate that both congruence and discrepancy between individual and group perceptions meaningfully shape collective action intentions. This study provides valuable insights into the social-psychological processes that drive collective environmental engagement and highlights the importance of considering group-level dynamics in environmental mobilization.Article Citation - WoS: 14Citation - Scopus: 16The Roles of Social Norms and Leadership in Health Communication in the Context of Covid-19(Pergamon-Elsevier Science Ltd, 2023) Akfirat, Serap; Bayrak, Fatih; Üzümçeker, Emir; Ergiyen, Tolga; Yurtbakan, Taylan; Uysal, Mete SefaThe global struggle with the COVID-19 pandemic has lasted for almost three years. Although national and local leaders have often called on the public to comply with preventive measures through health communication, large sections of society sometimes violated precautions and did not adequately follow these calls. We propose that social norms and leaders' identity entrepreneurship characteristics could be essential in effective health communication. In line with this notion, we investigated the effects of social norm types and leadership on complying with preventive measures, the intention to be vaccinated, and prosocial behavioral tendency through a high-powered experiment that focused on three factors: leadership quality (presence/lack of entrepreneurship), descriptive norm (supportive/obstructive), and injunctive norm (supportive/obstructive). Results showed that when support for injunctive and descriptive norms was present, people tended to more readily adhere to preventive measures, get vaccinated, and engage in prosocial behavior. There was also a significant effect of the interaction between descriptive and injunctive norms on compliance with preventive measures. The compliance level was highest when both norm types were supportive and lowest when both were obstructive. The effect decreased in the discrepant norms condition, where one type of norm was supportive and the other obstructive. There is also a significant interaction between leadership and the descriptive norm, indicating that a combination of an entrepreneur leader and a supportive descriptive norm increases compliance with the preventive measure. We discussed the role of leadership and social norms in effective health communication.Article Citation - WoS: 2Citation - Scopus: 2The roles of national and global identities and leaders in the acceptance of COVID-19 vaccines developed by different countries (Los roles de las identidades y los lideres nacionales y globales en la aceptacion de las vacunas contra la COVID-19 desarrolladas por diferentes paises)(Routledge Journals, Taylor & Francis Ltd, 2022) Akfirat, Serap; Uzumceker, Emir; Uysal, Mete Sefa; Yurtbakan, Taylan; Ergiyen, Tolga; Goruryilmaz, TanerThe current paper aims to study the social-psychological factors that would play roles in COVID-19 vaccine acceptance. Specifically, we examined whether national and global identifications and the leaders whom people think being in charge of managing the COVID-19 pandemic on a national scale could explain people's acceptance of the COVID-19 vaccines developed by different countries. We proposed a model in which people's assessment of the leader in terms of identity-leadership mediates the relationship between different identification types (i.e., global and national) and acceptance of Western, Asian or national vaccines. The model was tested on self-reported data collected in Turkey (N = 694) utilizing Structural Equation Modelling (SEM) in R software. The results revealed that national identification positively predicted acceptance of national vaccines and negatively predicted acceptance of Western vaccines; both of the relationships were also mediated by people's assessments of the leader in terms of identity-leadership dimensions. On the other side, global identification positively predicted acceptance of Western vaccines. The implications of the findings were discussed in terms of their practical contributions along with their theoretical relevance.Article They Are Undermining Our Identity Effect of Demographic Shift on Negative Reactions Toward Refugees: the Mediator Role of Identity Undermining(Springer, 2025) Ergiyen, Tolga; Taylan YurtbakanDemographic changes around the world via immigration provide a unique context for how high-powered (majority) groups respond to new circumstances. Previous studies indicated that impending demographic shift is detrimental to intergroup relations. In the present study, we present evidence of a novel mediator to explain the negative reactions of the majority group members to the impending demographic shift in a non-WEIRD (Türkiye) context. Accordingly, we conducted an experimental study (N = 274) in which participants showed a current demographic structure, future Turkish majority, and future Turkish minority via ostensibly a real newspaper article to examine the mediation role of identity undermining between impending demographic shift and outgroup tolerance and collective angst. Results of the mediation analysis showed that the significant indirect effect of demographic shift on shift on collective angst, but not on outgroup tolerance, via identity undermining emerged for the difference between the participants presented the current distribution of Türkiye and participants presented a future where Turkish citizens would no longer constitute a majority. Thus, we demonstrate that an experimentally manipulated impending demographic shift threatens the way of life (identity undermining) among majority group members, subsequently increasing their collective angst. This finding underscores the importance of identity undermining as a potential danger for majority-minority relations and highlights the need for strategies to mitigate these tensions. © The Author(s) 2025.Article The Psychosocial Dynamics of Political Alliances Alliance Characteristics, Leadership, and Political Engagement(Soc Ed Il Mulino, 2025) Ergiyen, Tolga; Yavuz-Ergiyen, GuncePre-electoral political alliances are common practices in democracies, offering a platform for uniting diverse voter bases under shared objectives. This study investigates the psychosocial dynamics of political alliances by exploring how alliance characteristics (complexity, coherence, and indispensability) and leadership characteristics (prototypicality and advancement) are associated with political engagement, win expectancy, and intergroup relations among supporters. Data were collected from supporters of a political alliance (Nation Alliance) (N = 130) before Turkey's 2023 presidential elections. Participants completed measures assessing alliance complexity, coherence, and indispensability, alongside evaluations of leader prototypicality and advancement. Results revealed significant positive relationships between alliance characteristics, positive intergroup attitudes towards subgroups (alliance parties), perceptions of collective efficacy, expectancy of winning the election, and political engagement. Mediation analyses further showed that collective efficacy mediated the relationships between alliance characteristics and both political engagement and win expectancy. However, the hypothesized mediating role of relative in-group prototypicality in intergroup attitudes was not supported. Leader characteristics are also positively associated with political engagement and collective efficacy beliefs among supporters, highlighting the positive role of leaders in shaping alliance dynamics and mobilizing voter support. This study explores the associations between alliance characteristics, leadership characteristics, and political engagement, providing insights into how these dynamics are associated with diverse political alliances in democratic contexts.Article Effect of Emotional Content on Memory Characteristics: Emotional Valence, Emotional Intensity, and Individual Emotions(2022) Konukoğlu, Kıvanç; Boyacıoğlu, İnci; Ergiyen, TolgaThe aim of the present study is to examine the relationships between the emotional valence and emotional intensity of autobiographical memories and the phenomenological characteristics of memories in the context of individual emotions and memory types. Seven hundred and sixty-four students (514 female, 250 male) from Dokuz Eylul University participated in the study. Participants were asked to recall an childhood memory, a self-defining memory, or a romantic relationship memory. After thinking about the memory they remember, they were requested to fill out the Autobiographical Memory Characteristics Questionnaire and a scale for intensity of individual emotions. Regression analyses showed that emotional intensity of the memories predicted the sensory details, rehearsal, and preoccupation with emotions. In moderated-mediation analyses, mediating effects for emotional intensity were detected between individual emotions and memory characteristics, except for the negative self-esteem emotions. Among these analyses, a moderating effect of memory types was detected only for the relationships between hostile emotions and anxiety-related emotions and the memory characteristics through the mediation of emotional intensity. While the intensity of singular emotions showed stronger relationship with emotional valence, the main variable that predicted memory characteristics overall was the emotional intensity.Article Citation - Scopus: 11Data From an International Multi-Centre Study of Statistics and Mathematics Anxieties and Related Variables in University Students (the Smarvus Dataset)(Web Portal Ubiquity Press, 2023) Terry, J.; Ross, R.M.; Nagy, T.; Salgado, M.; Garrido-Vásquez, P.; Sarfo, J.O.; Cooper, S.; Ergiyen, TolgaThis large, international dataset contains survey responses from N = 12,570 students from 100 universities in 35 countries, collected in 21 languages. We measured anxieties (statistics, mathematics, test, trait, social interaction, performance, creativity, intolerance of uncertainty, and fear of negative evaluation), self-efficacy, persistence, and the cognitive reflection test, and collected demographics, previous mathematics grades, self-reported and official statistics grades, and statistics module details. Data reuse potential is broad, including testing links between anxieties and statistics/mathematics education factors, and examining instruments’ psychometric properties across different languages and contexts. © 2023 The authors.Article Perceived person-group alignment and collective action intentions in environmental movements(2025) Ergiyen, Tolga; Serap AkfıratArticle Citation - WoS: 19Citation - Scopus: 19Social Identification and Collective Action Participation in the Internet Age: a Meta-Analysis(Masarykova Univ, Fac Social Studies, 2021) Akfirat, Serap; Uysal, Mete Sefa; Bayrak, Fatih; Ergiyen, Tolga; Uzumceker, Emir; Yurtbakan, Taylan; Ozkan, Ozlem SerapSince the digitally-mediated large-scale protests took place all over the world, the role of social identities in collective actions has become the center of academic attention. Some scholars have claimed that interpersonal or individual reasons have become more important than collective identifications in participating digitally-mediated collective actions. To answer the question that whether social identification has lost its centrality in collective actions in the Internet age, we conducted a meta-analysis of 46 studies (N = 18,242) which examined digitally-mediated collective actions across the world reported between January 2011 and January 2020. We focused on the relationship between social identification and collective action, and the possible moderator effects of group type to be identified (emergent vs. pre-existing group), participation type (actual behavior vs. intention), and WEIRDness of the sample. The analyses showed a moderate to strong relationship between social identification and participation in digitally-mediated collective actions, while group type was the only significant moderator. Accordingly, the relationship between identification with emergent groups and collective action participation was much stronger compared to the relationship between identification with pre-existing groups and collective action participation. We discussed the theoretical implications of the results emphasized the basic dynamics of collective actions.
