Psikoloji Bölümü Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/20.500.11779/1938
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Browsing Psikoloji Bölümü Koleksiyonu by Institution Author "Peker, Müjde"
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Article Citation - WoS: 7Citation - Scopus: 7A 32-Society Investigation of the Influence of Perceived Economic Inequality on Social Class Stereotyping(Wiley, 2022) Ashokkumar, Ashwini; Billet, Matthew; Becker, Maja; Peters, Kim; Jetten, Joland; Barry, Oumar; Tanjitpiyanond, Porntida; Peker, MüjdeThere is a growing body of work suggesting that social class stereotypes are amplified when people perceive higher levels of economic inequality—that is, the wealthy are perceived as more competent and assertive and the poor as more incompetent and unassertive. The present study tested this prediction in 32 societies and also examines the role of wealth-based categorization in explaining this relationship. We found that people who perceived higher economic inequality were indeed more likely to consider wealth as a meaningful basis for categorization. Unexpectedly, however, higher levels of perceived inequality were associated with perceiving the wealthy as less competent and assertive and the poor as more competent and assertive. Unpacking this further, exploratory analyses showed that the observed tendency to stereotype the wealthy negatively only emerged in societies with lower social mobility and democracy and higher corruption. This points to the importance of understanding how socio-structural features that co-occur with economic inequality may shape perceptions of the wealthy and the poor. © 2022 The Authors. European Journal of Social Psychology published by John Wiley & Sons Ltd.Book Part Biyoloji, Biliş ve Siyaset Psikolojisi(Nobel Akademik Yayıncılık, 2017) Peker, Müjde; Booth, Robert WEğer bu kitabı okuyorsanız, halihazırda siayset bilimi ve psikoloji etkileşimiyle ilgileniyorsunuz demektir.Article Citation - WoS: 98Citation - Scopus: 109Collective Narcissism Predicts Hypersensitivity To In-Group Insult and Direct and Indirect Retaliatory Intergroup Hostility(Wiley, 2016) de Zavala, Agnieszka Golec; Baran, Tomazs; Guerra, Rita; Peker, MüjdeResults of five studies (N?=?1596) linked collective narcissism—a belief in in-group exaggerated greatness contingent on external validation—to direct and indirect, retaliatory hostility in response to situations that collective narcissists perceived as insulting to the in-group but which fell well beyond the definition of an insult. In Turkey, collective narcissists responded with schadenfreude to the European economic crisis after feeling humiliated by the Turkish wait to be admitted to the European Union (Study 1). In Portugal, they supported hostile actions towards Germans and rejoiced in the German economic crisis after perceiving Germany's position in the European Union as more important than the position of Portugal (Study 2). In Poland, they supported hostile actions towards the makers of a movie they found offensive to Poland (Studies 3 and 5) and responded with direct and indirect hostility towards a celebrity whose jokes about the Polish government they found offensive (Study 4). Comparisons with self-positivity and in-group positivity indices and predictors of intergroup hostility indicated that collective narcissism is the only systematic predictor of hypersensitivity to in-group insult followed by direct and indirect, retaliatory intergroup hostility.Article Citation - WoS: 1Citation - Scopus: 1Estimated Probabilities of Positive, Vs. Negative, Events Show Separable Correlations With Covid-19 Preventive Behaviours(Elsevier, 2022) Aksu, Ayça; Booth, Robert W.; Yavuz, Burak Baran; Peker, MüjdeResearch has associated optimism with better health-protective behaviours, but few studies have measured optimism or pessimism directly, by asking participants to estimate probabilities of events. We used these probability estimates to examine how optimism and/or pessimism relate to protecting oneself from COVID-19. When COVID-19 first reached Turkey, we asked a snowball sample of 494 Istanbul adults how much they engaged in various COVID-protective behaviours. They also estimated the probabilities of their catching COVID-19, and of other positive and negative events happening to them. Estimated probability of general positive events (optimism) correlated positively with officially-recommended helpful behaviours (e.g. wearing masks), but not with less-helpful behaviours (e.g. sharing ‘alternative’ COVID-related information online). Estimated probabilities of general negative events (pessimism), or of catching COVID, did not correlate significantly with helpful COVID-related behaviours; but they did correlate with psychopathological symptoms, as did less-helpful COVID-related behaviours. This shows important nuances can be revealed by measuring optimism and pessimism, as separate variables, using probability estimates.Article Citation - WoS: 12Citation - Scopus: 18Explaining Illness With Evil: Pathogen Prevalence Fosters Moral Vitalism(Proceedings of the Royal Society B: Biological Sciences, 2019) Sachkova, Marianna; Kuppens, Peter; Crespo, Carla; Bain, Paul; Leknes, Siri; Tong, Jennifer; Fischer, Ronald; Eastwick, Paul W; Pelay, Cesar; M. Guerra, Valeschka; Guevara, José Luis Castellanos; Pina, Afroditi; Swann, William B; Yeung, Victoria Wai-lan; Hooper, Nic; Karasawa, Minoru; Vauclair, Christin-Melanie; Ashokkumar, Ashwini; Friese, Malte; Huang, Li-Li; Saguy, Tamar; Silfver-Kuhalampi, Mia; Loughnan, Steve; Bastian, Brock; Becker, Maja; Duffy, Jacob; Bilewicz, Michał; Sortheix, Florencia; Collier-Baker, Emma; Hanke, Katja; Peker, Müjde; Gómez, Ángel; Junqi, ShiPathogens represent a significant threat to human health leading to the emergence of strategies designed to help manage their negative impact. We examined how spiritual beliefs developed to explain and predict the devastating effects of pathogens and spread of infectious disease. Analysis of existing data in studies 1 and 2 suggests that moral vitalism (beliefs about spiritual forces of evil) is higher in geographical regions characterized by historical higher levels of pathogens. Furthermore, drawing on a sample of 3140 participants from 28 countries in study 3, we found that historical higher levels of pathogens were associated with stronger endorsement of moral vitalistic beliefs. Furthermore, endorsement of moral vitalistic beliefs statistically mediated the previously reported relationship between pathogen prevalence and conservative ideologies, suggesting these beliefs reinforce behavioural strategies which function to prevent infection. We conclude that moral vitalism may be adaptive: by emphasizing concerns over contagion, it provided an explanatory model that enabled human groups to reduce rates of contagious disease.Conference Object Gain Sensitivity and Cheating: the Role of Psychological Entitlement(Hogrefe, 2023) Şahin, Türkay; Demircan, Nilhan; Koloğlugil, Serhat; Peker, Müjde...Article Citation - WoS: 4Citation - Scopus: 4Individual Differences in Collectivism Predict City Identification and City Evaluation in Australian, French and Turkish Cities(Elsevier, 2017) Rubin, Mark; Morrison, Tessa; Peker, Müjde; Mahfud, Yara; Badea, Constantina; Condie, JennaCollectivism is a sociocultural variable that predicts how people relate to social groups. Cities are social groups. Hence, collectivism should predict how people relate to cities. To test this prediction, the researchers sampled 1660 residents of four cities in three countries. Participants completed an online survey containing measures of collectivism, city identification, and city evaluation. Results showed that, within each city sample and across the combined samples, a specific measure of collectivism called collective interdependent self-construal was positively related to city evaluation. Furthermore, city identification mediated the relation between collective interdependent self-construal and city evaluation. These results demonstrate that people's general tendency to construe social groups as part of their self predicts their identification with their city, which in turn helps to explain their positive appraisal of their city. These results are discussed from the perspectives of both environmental psychology and social psychology.Article Citation - WoS: 5Citation - Scopus: 6Measurement Invariance of the Moral Vitalism Scale Across 28 Cultural Groups(Public Library of Science, 2020) Bilewicz, Michal; Kuppens, Peter; Crespo, Carla; Collier-Baker, Emma; Fischer, Ronald; Pelay, Cesar; Peker, Müjde; Pina, Afroditi; Karasawa, Minoru; Hooper, Nic; Vauclair, Christin-Melanie; Friese, Malte; AminihajibashiI, Samira; Wailan Yeung, Victoria; Rudnev, Maksim; Eastwic, Paul; Luis Castellanos Guevara, Jose; Saguy, Tamar; Silfver-Kuhalampi, Mia; Gomez, Angel; Becker, Maja; Loughnan, Steve; Bastian, Brock; Swann, William; Tong, Jennifer (Yuk-Yue); Sortheix, Florencia; Guerra, Valeschka; Huang, Li-li; Shi, Junqi; Hanke, Katja; Sachkova, MariannaMoral vitalism refers to a tendency to view good and evil as actual forces that can influence people and events. The Moral Vitalism Scale had been designed to assess moral vitalism in a brief survey form. Previous studies established the reliability and validity of the scale in US-American and Australian samples. In this study, the cross-cultural comparability of the scale was tested across 28 different cultural groups worldwide through measurement invariance tests. A series of exact invariance tests marginally supported partial metric invariance, however, an approximate invariance approach provided evidence of partial scalar invariance for a 5-item measure. The established level of measurement invariance allows for comparisons of latent means across cultures. We conclude that the brief measure of moral vitalism is invariant across 28 cultures and can be used to estimate levels of moral vitalism with the same precision across very different cultural settings.Article Citation - WoS: 20Citation - Scopus: 20Moral Expansiveness Around the World: the Role of Societal Factors Across 36 Countries(SAGE Publications Inc., 2022) Rudnev, Maksim; Peker, Müjde; Jetten, Jolanda; Acevedo-Triana, Cesar; Crimston, Charlie R.; Kirkland, Kelly; Amiot, Catherine E.What are the things that we think matter morally, and how do societal factors influence this? To date, research has explored several individual-level and historical factors that influence the size of our ‘moral circles.' There has, however, been less attention focused on which societal factors play a role. We present the first multi-national exploration of moral expansiveness—that is, the size of people’s moral circles across countries. We found low generalized trust, greater perceptions of a breakdown in the social fabric of society, and greater perceived economic inequality were associated with smaller moral circles. Generalized trust also helped explain the effects of perceived inequality on lower levels of moral inclusiveness. Other inequality indicators (i.e., Gini coefficients) were, however, unrelated to moral expansiveness. These findings suggest that societal factors, especially those associated with generalized trust, may influence the size of our moral circles.Article Muhafazakarlık, Kaygı ve Tehdit Edici Uyarıcılara Karşı Dikkat Yanlılığı(2017) Booth, Robert W; Dikçe, Uğurcan; Peker, MüjdePolitical ideology often forms an important part of someone’s identity, and affects their life in many ways. Many have studied the correlates and predictors of ideology, especially conservative ideology (e.g. Adorno, Frenkel-Brunswik, Levinson, & Sanford, 1950; Jost, Glaser, Kruglanksi, & Sulloway, 2003; Tomkins, 1963; Wilson, 1973). Psychologists and political scientists have become increasingly convinced that ideology is related to biological, physiological and cognitive factors. For example, twin studies suggest political attitudes are about 30-60% heritable (see Bouchard & McGue, 2003; Hatemi et al., 2010). Here, we focus on cognitive and associated emotional correlates of ideology.Article Citation - WoS: 3Citation - Scopus: 3Perceived Self-Society Moral Discrepancies Concerning Fairness Predict Depression and Paranoid Ideation(Springer, 2021) Booth, Robert W; Güney, Onuray; Peker, MüjdeThis study investigated the psychological correlates of perceiving a discrepancy between one’s own moral beliefs and those of the greater society (a ‘moral discrepancy’). One hundred and one female Turkish students answered questions about their own moral beliefs, their perceptions of the greater society’s moral beliefs, and their mental health. Moral discrepancies were assessed using an adaptation of the Moral Foundations Questionnaire (Graham et al. 2009), while mental health was assessed using the Symptom Check List-90-Revised (Derogatis 1992). Participants who perceived a discrepancy relating to fairness and reciprocity concerns reported more depressed and paranoid symptoms. It is suggested that moral discrepancies can create a vulnerability to depression and paranoid thinking by fostering a feeling of isolation.Article Citation - WoS: 17Citation - Scopus: 21Perceiving Societal Pressure To Be Happy Is Linked To Poor Well-Being, Especially in Happy Nations(Nature Research, 2022) Rhee, J Joshua; Peker, Müjde; Becker, Maja; Bilewicz, Michal; Bastian, Brock; Baguma, K Peter; Barry, Oumar; Dejonckheere, EgonHappiness is a valuable experience, and societies want their citizens to be happy. Although this societal commitment seems laudable, overly emphasizing positivity (versus negativity) may create an unattainable emotion norm that ironically compromises individual well-being. In this multi-national study (40 countries; 7443 participants), we investigate how societal pressure to be happy and not sad predicts emotional, cognitive and clinical indicators of well-being around the world, and examine how these relations differ as a function of countries' national happiness levels (collected from the World Happiness Report). Although detrimental well-being associations manifest for an average country, the strength of these relations varies across countries. People's felt societal pressure to be happy and not sad is particularly linked to poor well-being in countries with a higher World Happiness Index. Although the cross-sectional nature of our work prohibits causal conclusions, our findings highlight the correlational link between social emotion valuation and individual well-being, and suggest that high national happiness levels may have downsides for some.Article Citation - WoS: 7Citation - Scopus: 10Relationships Among Self-Construal, Gender, Social Dominance Orientation, and Interpersonal Distance(Wiley, 2018) Eke, Aylin; Booth, Robert W.; Peker, MüjdeThe present research focuses on the cognitive embodiment of physical proximity,through interpersonal distance’s relationship with self‐construal, gender, and socialdominance orientation. Previous work showed that more independent self‐construalwas associated with higher distancing preferences of participants, and that femalestend to have higher interdependent self‐construal that lead them to prefer less interpersonal distance. We expected to replicate these findings. However, due to the relationship between power and interpersonal distance, it was argued that gender andperceptions regarding the social hierarchy would also play a role in predicting interpersonal distance. More specifically, it was predicted that while females who accept social hierarchies between males and females would prefer more distance when interacting with males, males would not differ in their preference for social distance.One hundred participants (67 female) completed the Comfortable Interpersonal Distance Scale, Independent and Interdependent Self‐Construal Scales and the Social Dominance Orientation Scale. Interdependent self‐construal was negatively correlated with overall preferred interpersonal distance. Moreover, females high on social dominance orientation preferred larger interpersonal distance from male adult strangers than from female adult strangers. The findings provide further support for the embodiment of self‐construal by showing that psychological closeness and heteronomy are related to physical closeness. The findings also highlight the importance of investigating communal sharing and authority ranking dimensions simultaneously when focusing on interpersonal distance as well as differentiating females’ interpersonal sensitivity due to low power with their high affiliation.Article Citation - WoS: 11Citation - Scopus: 12Social Mindfulness Predicts Concern for Nature and Immigrants Across 36 Nations(Nature Portfolio, 2022) Peker, Müjde; Van Lange, Paul A. M.; Acevedo-Triana, Cesar; Van Doesum, Niels J.; Kirkland, Kelly; Ausmees, Liisi; Amiot, Catherine E.People cooperate every day in ways that range from largescale contributions that mitigate climate change to simple actions such as leaving another individual with choice - known as social mindfulness. It is not yet clear whether and how these complex and more simple forms of cooperation relate. Prior work has found that countries with individuals who made more socially mindful choices were linked to a higher country environmental performance - a proxy for complex cooperation. Here we replicated this initial finding in 41 samples around the world, demonstrating the robustness of the association between social mindfulness and environmental performance, and substantially built on it to show this relationship extended to a wide range of complex cooperative indices, tied closely to many current societal issues. We found that greater social mindfulness expressed by an individual was related to living in countries with more social capital, more community participation and reduced prejudice towards immigrants. Our findings speak to the symbiotic relationship between simple and more complex forms of cooperation in societies.Article Citation - WoS: 8Citation - Scopus: 7State Anxiety Impairs Attentional Control When Other Sources of Control Are Minimal(Taylor & Francis, 2016) Booth, Robert William; Peker, MüjdeResearch suggests anxiety impairs attentional control; however, this effect has been unreliable. We argue that anxiety’s impairment of attentional control is subtle, and can be obscured by other non-emotional sources of control. We demonstrate this by examining conflict adaptation, an enhancement in attentional control following a trial with high conflict between distracter and target stimuli. Participants completed a Stroop task featuring incongruent (e.g. RED in green font; high-conflict) and control (e.g. +++ in green font; low-conflict) trials. More state-anxious participants showed greater Stroop interference following control trials, but interference was uniformly low following incongruent trials. This suggests state anxiety can impair attention, but other sources of top-down control – such as conflict adaptation – can easily overcome this impairment. This is consistent with recent theories of anxious cognition and shows that anxiety researchers must attend to the dynamics and sources of attentional control.Article Citation - WoS: 51Citation - Scopus: 51Subjective Status and Perceived Legitimacy Across Countries(John Wiley and Sons, 2020) Andrighetto, Luca; Croizet, Jean‐claude; Bocian, Konrad; Essien, Iniobong; Batruch, Anatolia; Autin, Frederique; Durante, Federica; Bukowski, Marcin; De Lemus, Soledad; Babincak, Peter; Conway, Paul; Bae, Jaechang; Easterbrook, Matthew J.; Brandt, Mark J.; Dragon, Piotr; Crawford, Jarret T.; Bourguignon, David; Butler, Sarah E.; Butera, Fabrizio; Chryssochoou, Xenia; Becker, Julia C.; Spears, Russell; Bodroža, Bojana; Forgas, Joseph P.; Badea, Constantina; Peker, Müjde; Degner, Juliane; Kuppens, ToonThe relationships between subjective status and perceived legitimacy are important for understanding the extent to which people with low status are complicit in their oppression. We use novel data from 66 samples and 30 countries (N = 12,788) and find that people with higher status see the social system as more legitimate than those with lower status, but there is variation across people and countries. The association between subjective status and perceived legitimacy was never negative at any levels of eight moderator variables, although the positive association was sometimes reduced. Although not always consistent with hypotheses, group identification, self-esteem, and beliefs in social mobility were all associated with perceived legitimacy among people who have low subjective status. These findings enrich our understanding of the relationship between social status and legitimacy.Article Citation - WoS: 5Citation - Scopus: 7Turkish Adaptation of the Fear of Spiders Questionnaire: Reliability and Validity in Non-Clinical Samples(Taylor & Francis, 2016) Booth, Robert William; Öztop, Pınar; Peker, MüjdeThe rapid, objective measurement of spider fear is important for clinicians, and for researchers studying fear. To facilitate this, we adapted the Fear of Spiders Questionnaire (FSQ) into Turkish. The FSQ is quick to complete and easy to understand. Compared to the commonly used Spider Phobia Questionnaire, it has shown superior test–retest reliability and better discrimination of lower levels of spider fear, facilitating fear research in non-clinical samples. In two studies, with 137 and 105 undergraduates and unselected volunteers, our adapted FSQ showed excellent internal consistency (Cronbach’s ? = .95 and .96) and test–retest reliability (r = .90), and good discriminant validity against the State–Trait Anxiety Inventory—Trait (r = .23) and Beck Anxiety Inventory—Trait (r = .07). Most importantly, our adapted FSQ significantly predicted 26 students’ self-reported discomfort upon approaching a caged tarantula; however, a measure of behavioural avoidance of the tarantula yielded little variability, so a more sensitive task will be required for future behavioural testing. Based on this initial testing, we recommend our adapted FSQ for research use. Further research is required to verify that our adapted FSQ discriminates individuals with and without phobia effectively.

