The paper presents validation of the Reinforcement Sensitivity Questionnaire (RSQ), measuring the constructs of the Revised Reinforcement Sensitivity theory (RST). The research was conducted on a sample of 565 participants, using three measures of the constructs of the Revised Reinforcement Sensitivity Theory – the Behavioral Inhibition System/Behavioral Approach System (BIS/BAS) scale, Reinforcement Sensitivity Theory Personality Questionnaire (RST-PQ), and Reinforcement Sensitivity Questionnaire. The results of confirmatory factor analysis suggest good internal validity of the RSQ, while the results of principal components analysis show that the RSQ scales are significantly related to other RST measures.

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The COVID-19 pandemic, a health emergency with international consequences, has brought serious impact on all aspects of society and affects not only health and economy, but psychological functioning and mental health as well. This research was conducted in order to examine and further our understanding of emotional reactions to the ongoing pandemic. Change in emotional reactions during the pandemic and relations with specific pandemic related behaviors and personality traits from the revised Reinforcement sensitivity theory were explored. The research was conducted in Serbia for 35 days while the country was in a state of emergency, as a citizen science project. Out of the 1526 participants that joined the study, 444 (67% female) had measures for all five weeks. Longitudinal changes in four emotional states during the pandemic were examined: worry, fear, boredom, and anger/annoyance. Results indicate a decrease in all four emotional states over time. The biggest decrease was present in case of worry, followed by fear and boredom. Regression analysis showed that personality dimensions, as well as behavioral responses in this situation significantly predicted emotional reactions. Findings revealed the Behavioral activation system was significantly related to worry, fear and boredom, Fight with boredom and anger, and the Behavioral inhibition system with anger. Adherence to protection measures, as well as increased exposure to the media, had significant positive relations with worry and fear. These results indicate that both stable characteristics and specific pandemic-related behaviors are significantly related to emotional response during the pandemic.

Although the PANAS is widely used in affect research there are some controversies regarding its structure. Two related studies were reported providing evidence that a Serbian adaptation of the PANAS represents a valid and reliable measure of self-reported affect. Study 1 (N = 455), showed that its psychometric properties and correlates obtained in a Serbian sample are highly comparable to those reported in the American validation study. Additionally, a hierarchical structure of specific affects within the PANAS was explored via a second-order confirmatory analysis. Results showed that Joviality, Self-Assurance, and Attentiveness can be regarded as lower-order factors of Positive Affect, whereas Fear, Self- Disgust, and Hostility seem to represent lower-order factors of Negative Affect. Study 2 (N = 87) demonstrated differential momentary activations of the identified lower-order factors in the real-life situation of taking an exam. The construct validity of the specific subscales was supported. Among the subscales, Self-Disgust had inadequate psychometric properties. [Projekat Ministarstva nauke Republike Srbije, br. 179006]

The aim of this research is to validate the HEXACO model of personality in the Serbian language through psychometric validation of the 100-item version of the HEXACO-PI-R. The research was conducted on 2 independent samples, the first comprising 1,217 participants from a community sample (55.5% females; average age = 31.77 years), and the second 345 undergraduate students (65% females; average age = 21 years). Besides the HEXACO-PI-R, 2 questionnaires were applied for the purposes of convergent validation: the Big Five Plus Two (BF+2), measuring 7 lexical personality dimensions (applied in Sample 1), and the Big Five Inventory (BFI; applied in Sample 2). Factor structure of the HEXACO-PI-R is in line with model assumptions. Convergent validity is good, whereby Extraversion, Openness to Experience, and Conscientiousness are highly correlated to their BFI and BF+2 counterparts. Honesty-Humility is most closely related to Negative Valence (BF+2), Emotionality to BFI Neuroticism, and Agreeableness to BF+2 Aggressiveness and BFI Agreeableness. The results point to the satisfactory validity of the HEXACO model and its measure in the Serbian language.