A cross-national investigation of psychosis-like experiences in five European countries included in the E-CLECTIC study: Psychometric challenges in studying their measurement

TY - JOUR

T1 - A cross-national investigation of psychosis-like experiences in five European countries included in the E-CLECTIC study

T2 - Psychometric challenges in studying their measurement

AU - E-CLECTIC group

AU - Siddi, Sara

AU - Ochoa, Susana

AU - Larøi, Frank

AU - Lincoln, Tania M

AU - Schlier, Björn

AU - Zaytseva, Yuliya

AU - Laloyaux, Julien

AU - Kozáková, Eva

AU - Cella, Matteo

AU - Ntouros, Evangelos

AU - Bozikas, Vasileios

AU - Rocha, Nuno Barbosa

AU - Gawęda, Łukasz

AU - Rocha, Susana Aguiar

AU - Preti, Antonio

N1 - Publisher Copyright: © 2024 Elsevier B.V.

PY - 2024/9

Y1 - 2024/9

N2 - BACKGROUND: Psychotic-like experiences (PLEs) are subtle, subclinical perturbations of perceptions and thoughts and are common in the general population. Their characterisation and unidimensionality are still debated.METHODS: This study was conducted by the Electronic-halluCinations-Like Experiences Cross-culTural International Consortium (E-CLECTIC) and aimed at measuring the Community Assessment of Psychic Experiences (CAPE) factorial structure across five European countries (Belgium; Czech Republic, Germany; Greece, and Spain) and testing the adequacy of the unidimensional polytomous Rasch model of the tool via Partial Credit Model (PCM) of the CAPE to detect people with a high risk for developing psychosis.RESULTS: The sample included 1461 participants from the general population. The factorial analysis confirmed the best fit for the bifactor implementation of the three-factor model, including the positive, negative and depressive dimensions and a general factor. Moreover, the unidimensional polytomous Rasch analysis confirmed that CAPE responses reflected one underlying psychosis proneness.CONCLUSIONS: The study proved that the CAPE measures a single latent dimension of psychosis-proneness. The CAPE might help locate and estimate psychosis risk and can be used as a screening tool in primary care settings/education settings.

AB - BACKGROUND: Psychotic-like experiences (PLEs) are subtle, subclinical perturbations of perceptions and thoughts and are common in the general population. Their characterisation and unidimensionality are still debated.METHODS: This study was conducted by the Electronic-halluCinations-Like Experiences Cross-culTural International Consortium (E-CLECTIC) and aimed at measuring the Community Assessment of Psychic Experiences (CAPE) factorial structure across five European countries (Belgium; Czech Republic, Germany; Greece, and Spain) and testing the adequacy of the unidimensional polytomous Rasch model of the tool via Partial Credit Model (PCM) of the CAPE to detect people with a high risk for developing psychosis.RESULTS: The sample included 1461 participants from the general population. The factorial analysis confirmed the best fit for the bifactor implementation of the three-factor model, including the positive, negative and depressive dimensions and a general factor. Moreover, the unidimensional polytomous Rasch analysis confirmed that CAPE responses reflected one underlying psychosis proneness.CONCLUSIONS: The study proved that the CAPE measures a single latent dimension of psychosis-proneness. The CAPE might help locate and estimate psychosis risk and can be used as a screening tool in primary care settings/education settings.

UR - http://www.scopus.com/inward/record.url?scp=85198315110&partnerID=8YFLogxK

U2 - 10.1016/j.psychres.2024.116072

DO - 10.1016/j.psychres.2024.116072

M3 - Article

C2 - 39002501

SN - 0165-1781

VL - 339

SP - 116072

JO - Psychiatry Research

JF - Psychiatry Research

M1 - 116072

ER -