Assessment of Identity Disturbance: Factor Structure and Validation of the Personality Structure Questionnaire in an Italian Sample

There are few brief measures of identity disturbance for use in clinical practice that have been subject to any cross-cultural validation. This study investigated the construct validity of the Personality Structure Questionnaire (PSQ) in Italian clinical (N = 237) and community (N = 296) samples. Co...

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Veröffentlicht in:Psychological assessment 2016-04, Vol.28 (4), p.e27-e35
Hauptverfasser: Berrios, Raul, Kellett, Stephen, Fiorani, Christina, Poggioli, Marisa
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container_issue 4
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container_title Psychological assessment
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creator Berrios, Raul
Kellett, Stephen
Fiorani, Christina
Poggioli, Marisa
description There are few brief measures of identity disturbance for use in clinical practice that have been subject to any cross-cultural validation. This study investigated the construct validity of the Personality Structure Questionnaire (PSQ) in Italian clinical (N = 237) and community (N = 296) samples. Confirmatory factor analysis was conducted to investigate the internal structure of the PSQ. A 3-factor structure (i.e., differing self-states, mood variability, and behavioral loss of control) including a second-order factor provided the best fit to the data. This structure was demonstrated to be invariant across sex and clinical diagnosis, with clinical diagnosis significantly predicting increased PSQ scores. A global PSQ score of between 26 and 28 was found to be an appropriate cutoff for assisting in diagnostic processes. The clinical implication of the study is that quantitative assessment of identity disturbance can be rapidly achieved via the PSQ, usefully supplementing necessary diagnostic and formulation work.
doi_str_mv 10.1037/pas0000143
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subjects Adult
Antisocial personality disorder
Confirmatory Factor Analysis
Diagnosis
Factor Analysis
Factor Analysis, Statistical
Female
Human
Human Sex Differences
Humans
Italy
Male
Middle Aged
Personality Disorders - diagnosis
Personality Measures
Personality Tests
Psychiatric Status Rating Scales
Quantitative psychology
Reliability
Reproducibility of Results
Self-Concept
Surveys and Questionnaires
Teenagers
Test Validity
Translations
Validity
title Assessment of Identity Disturbance: Factor Structure and Validation of the Personality Structure Questionnaire in an Italian Sample
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