Revisiting the Defeatist Performance Belief Scale in Adults With Schizophrenia and Youth at Clinical High-Risk for Psychosis: A Comprehensive Psychometric Analysis.

ABSTRACT:

Background and hypothesis

In accordance with the Cognitive Model of Negative Symptoms, defeatist performance beliefs (DPBs) are an important psychosocial mechanism of negative symptoms in schizophrenia-spectrum groups. DPBs are also mediators of negative symptom improvement in clinical trials. Despite the clinical significance of DPBs and their inclusion as a mechanism of change measure in clinical trials, the psychometric properties of the DPB scale have not been examined in any schizophrenia-spectrum group.

Study design

This study evaluated the factor structure, reliability, and validity of the DPB scale in 943 schizophrenia and 250 clinical high-risk for psychosis (CHR) participants from multiple US sites. Confirmatory factor analyses tested competing factor structures: a

SUBMITTER: Luther L 

PROVIDER: S-EPMC12597509 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature