Equivalent short forms of the Situational Feature Recognition Test 2: Psychometric properties and analysis of interform equivalence and test-retest reliability
- PMID: 31568625
- PMCID: PMC7027651
- DOI: 10.1002/mpr.1802
Equivalent short forms of the Situational Feature Recognition Test 2: Psychometric properties and analysis of interform equivalence and test-retest reliability
Abstract
Objective: To obtain two equivalent short forms of the "Situational Feature Recognition Test, Version 2," a social perception test, and their psychometric properties.
Methods: Patients with schizophrenia (n = 101) were assessed at two different times. Statistical analyses were performed as follows: (1) Cronbach's alpha was used to assess reliability; (2) Spearman correlations, Wilcoxon signed-rank test, and a 2 (form) × 2 (time) repeated measures multivariate analysis of variance were used to analyse interform equivalence; (3) Sensitivity to change was studied by a 2 (group) × 2 (time) repeated measures multivariate analysis of variance; (4) Spearman correlations were employed to assess test-retest reliability, convergent and discriminant validity, and relationship with functionality and symptoms.
Results: The short forms showed good internal consistency at both times. Significant and moderate correlation between forms was found along with no statistically significant form x time interaction. Hits and false positives of both forms were moderately correlated at both times. Group x time interaction was significant especially for hits when assessing sensitivity to change. Both forms were significantly correlated with other social cognition domains and with functionality.
Conclusions: Results of this study support the use of short forms of the Situational Feature Recognition Test, Version 2 especially in clinical trials and longitudinal studies among patients with schizophrenia.
Keywords: equivalent forms; schizophrenia; short forms; social cognition; social perception.
© 2019 The Authors International Journal of Methods in Psychiatric Research Published by John Wiley & Sons Ltd.
Conflict of interest statement
The authors report no conflicts of interest.
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