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The Revised Child Anxiety and Depression Scale (RCADS) is a self-report questionnaire that aims to assess symptoms of anxiety and depressive disorders in children. Two studies were conducted to evaluate the psychometric properties of the Polish version of the RCADS. Study 1 was conducted to analyze the structural validity and reliability of the RCADS scores and Study 2 assessed the longitudinal measurement of stability over time. Data were collected from a community sample of 501 children and adolescents aged 8 to 14 years in Poland. The original 47-item version of the Polish RCADS was compared with two shortened versions: 30- and 20-item versions. Overall results revealed support for the structural and construct validity, reliability, and stability of the Polish version of the RCADS.

National narcissism and national identification, two distinct types of national commitment, differ in terms of their psychological concomitants. Therefore, in the current article, we hypothesized that they would also relate to different adult attachment styles. Namely, we proposed that national narcissism would be positively associated with higher attachment anxiety, while national identification would be associated with lower attachment anxiety and avoidance. These hypotheses were tested in three cross-sectional surveys (Study 1 N = 570; Study 3 N = 558; Study 4 N = 649) and one longitudinal survey (Study 2 N = 808). In all studies, we found a consistent positive relationship between attachment anxiety and national narcissism, and a negative relationship between attachment avoidance and national identification. Finally, we also demonstrated indirect effects of attachment anxiety (via national narcissism) on maladaptive group-related outcomes: conspiracy beliefs, non-normative collective action, and willingness to conspire.

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Purpose Over the past two decades, orthorexia nervosa (ON) has been increasingly investigated. Recently, a new revision version of the ORTO-15, namely ORTO-R, was used. The main objective of the present study was to confirm the factor structure of Polish version of the ORTO-R for evaluating ON thoughts and behaviors. Method In three studies, a total of 3081 participants was selected by random sampling through several universities and companies. In Study 1, we used original items of ORTO-15, in Study 2 we used both, the ORTO-15 items and the revised items from ORTO-R, and in Study 3 we used only the items from the ORTO-R. Confirmatory factor analysis was used for determining the factorial structure of the Polish version of the ORTO-R. We also assessed internal consistency and convergent and criterion validity of the ORTO-R. Results The model composed of the revised items (ORTO-R) was characterized of good convergent and criterion validity. Furthermore, ORTO-R appeared to be more internally consistent as compared to ORTO-15. Conclusion The 6-item ORTO-R is valid and reliable method to assess orthorexic thoughts and behaviors among Polish-speaking population and could be applied in future research. Using revised version of the items is strongly preferred to using the items in their original ORTO-15 form.