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Full-Text Articles in Medicine and Health Sciences

Exposure To Unpredictability And Mental Health: Validation Of The Brief Version Of The Questionnaire Of Unpredictability In Childhood (Quic-5) In English And Spanish, Natasha G. Lindert, Megan Y. Maxwell, Sabrina R. Liu, Hal S. Stern, Tallie Z. Baram, Elysia Poggi Davis, Victoria B. Risbrough, Dewleen G. Baker, Caroline M. Nievergelt, Laura M. Glynn Nov 2022

Exposure To Unpredictability And Mental Health: Validation Of The Brief Version Of The Questionnaire Of Unpredictability In Childhood (Quic-5) In English And Spanish, Natasha G. Lindert, Megan Y. Maxwell, Sabrina R. Liu, Hal S. Stern, Tallie Z. Baram, Elysia Poggi Davis, Victoria B. Risbrough, Dewleen G. Baker, Caroline M. Nievergelt, Laura M. Glynn

Psychology Faculty Articles and Research

Unpredictability is increasingly recognized as a primary dimension of early life adversity affecting lifespan mental health trajectories; screening for these experiences is therefore vital. The Questionnaire of Unpredictability in Childhood (QUIC) is a 38-item tool that measures unpredictability in childhood in social, emotional and physical domains. The available evidence indicates that exposure to unpredictable experiences measured with the QUIC predicts internalizing symptoms including depression and anxiety. The purpose of the present study was to validate English and Spanish brief versions (QUIC-5) suitable for administration in time-limited settings (e.g., clinical care settings, large-scale epidemiological studies). Five representative items were identified from …


Is The Phq-9 A Unidimensional Measure Of Depression? A 58,272-Participant Study, Renzo Bianchi, Jay Verkuilen, Sharon Toker, Irvin Sam Schonfeld, Markus Gerber, Elmar Brähler, Kurt Kroenke Jun 2022

Is The Phq-9 A Unidimensional Measure Of Depression? A 58,272-Participant Study, Renzo Bianchi, Jay Verkuilen, Sharon Toker, Irvin Sam Schonfeld, Markus Gerber, Elmar Brähler, Kurt Kroenke

Publications and Research

The PHQ-9 has become a measure of reference in depression research and clinical practice. However, the issue of the PHQ-9’s unidimensionality has not been fully elucidated, and the usability of the PHQ-9’s total score requires clarification. In this study, we examined the dimensionality, scalability, and monotonicity properties of the PHQ-9 as well as the scale’s total-score reliability. We did so based on exploratory structural equation modeling (ESEM) bifactor analysis and Mokken scale analysis (MSA). We relied on a total of 58,272 participants (63% female; Mage = 43, SDage = 13) from 29 samples involving seven different countries (e.g., Germany, the …