Reliability and discriminant validity of the Slovak version of the 16-item Prodromal Questionnaire (PQ-16) in a student sample

Jakub Januška, Alexandra Straková, Michal Turček, Barbora Vašečková, Ľubica Forgáčová, Anton Heretik, Ján Pečeňák and Michal Hajdúk

Psychosis, 2022, vol. 14, issue 2, 131-142

Abstract: BackgroundThe Prodromal Questionnaire (PQ) is a widely used measure for psychosis risk assessment. The primary aim of this study is to examine the reliability and discriminant validity of the Slovak version of the 16-item Prodromal Questionnaire (PQ-16) in a sample of university students.MethodsA sample of 1276 (75% female) university students completed a cross-sectional online survey consisting of a large battery of scales measuring psychopathology, social functioning, and well-being. The mean age was M = 22.59 and SD = 3.94.ResultsOn a bivariate level, the prodromal symptoms severity measured by the PQ-16 was associated with depression, anxiety, lower well-being, and more severe problems in social functioning. The PQ-16 explained a significant variability of social functioning above and beyond the effect of depression and anxiety. Results revealed sufficient internal reliability (α = 0.774 and ω = 0.761) of the scale.DiscussionThe Slovak version of the PQ-16 has sound reliability and shows an adequate pattern of association with depression, anxiety, and social functioning. These promising findings need to be replicated on an independent sample of help-seeking individuals or a high-risk population.

Date: 2022
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DOI: 10.1080/17522439.2021.1907773

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