Reliability, validity and ability to detect change of the Personal and Social Performance scale in patients with stable schizophrenia

Nasrallah, Henry; Morosini, PierLuigi; Gagnon, Dennis D.

doi:10.1016/j.psychres.2007.11.012

Cited by 243Schizophrenia research and treatmentPsychometric Methodologies and TestingPsychological Testing and Assessment

Reliability, validity and ability to detect change of the Personal and Social Performance scale in patients with stable schizophrenia

Nasrallah, Henry, Morosini, PierLuigi, Gagnon, Dennis D.·2008·Psychiatry Research

DOI 10.1016/j.psychres.2007.11.012

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Abstract

This report describes the measurement properties of the Personal and Social Performance scale (PSP), a clinician-reported measure of severity of personal and social dysfunction, in an outpatient population with stabilized schizophrenia. Pooled data from two similar antipsychotic clinical studies were analyzed (n=411). The PSP showed good test-retest reliability (intraclass correlation coefficient=0.79). The PSP was more highly correlated with the Strauss-Carpenter Level of Function, an instrument measuring a similar construct, than the Positive and Negative Syndrome Scale, an instrument measuring a different construct. There was a statistically significant difference between mean PSP scores in subjects grouped by their severity rating on the Clinical Global Impression-Severity (CGI-S) (mild or less versus at least moderate), indicating the ability to discriminate between known groups. Effect sizes for mean change in the PSP based on 1-category improvement (0.72) or worsening (-0.88) versus no change in the CGI-S were moderate to large, demonstrating the ability to detect change. Estimates of between-group minimum important difference suggest that a 7-point improvement in the PSP may be clinically meaningful in a clinical trial setting. Initial reliability and validity assessments suggest the PSP may be a useful measure of social functioning in patients with stable schizophrenia.

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The PSP showed good interrater reliability and test-retest reliability.
“The PSP showed good (> 0.80) interrater reliability and test–retest reliability [33, 34].”
From The effect of dialectical behaviour therapy in autism spectrum patients with suicidality and/or self-destructive behaviour (DIASS): Study protocol for a multicentre randomised controlled trial (2020) · cites this paper as [34]
The PSP has good test-retest reliability (ICC=.79) and validity for measuring social functioning.
“Good test–retest reliability (ICC = .79) and validity assessments suggest that the PSP is valid for measuring social functioning.40”
From Yoga-Based Group Intervention for Inpatients with Schizophrenia Spectrum Disorders—Feasibility, Acceptability, and Preliminary Outcomes of a Rater-Blinded Randomized Controlled Trial. (2026) · cites this paper as [40]

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Authors: Nasrallah, H., Morosini, P., & Gagnon, D. D.
Affiliations: University of Cincinnati (US)
Istituto Superiore di Sanità (IT)
Corresponding author: Nasrallah, Henry
ORCID: Nasrallah, Henry
Venue: Psychiatry Research
Publisher: Elsevier BV
Published: 2008-11
Volume: 161
Issue: 2
Pages: 213-224
ISSN: 0165-1781 (ISSN-L)
DOI: 10.1016/j.psychres.2007.11.012
OpenAlex: W2100441519
Cited by: 243
References: 37
Citations by year: 2026: 17 · 2025: 17 · 2024: 16 · 2023: 18 · 2022: 18 · 2021: 18 · 2020: 20 · 2019: 16 · 2018: 10 · 2017: 16 · 2016: 21 · 2015: 8 · 2014: 12 · 2013: 10 · 2012: 7
FWCI: 3.97
Type: journal article
Language: en
Open access: closed
Licence: www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations: Psychiatry Research (publishedVersion)
PubMed (publishedVersion)
Funders: Johnson and Johnson
Topics: Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
Social Sciences › Decision Sciences › Management Science and Operations Research › Psychometric Methodologies and Testing
Social Sciences › Psychology › Applied Psychology › Psychological Testing and Assessment
Keywords: Personal and Social Performance Scale, schizophrenia, social functioning, personal functioning, functional outcome assessment, test-retest reliability, construct validity, minimal clinically important difference, Clinical Global Impression Scale, antipsychotic drugs
MeSH terms: Adult, Ambulatory Care, Female, Humans, Male, Psychiatric Status Rating Scales, Psychometrics, Quality of Life, Surveys and Questionnaires, Schizophrenia, Schizophrenic Psychology, Social Adjustment, Antipsychotic Agents, Reproducibility of Results, Outcome Assessment, Health Care, Risperidone, Diagnostic and Statistical Manual of Mental Disorders

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Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

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Reliability, validity and ability to detect change of the Personal and Social Performance scale in patients with stable schizophrenia

Abstract

Integrity signals

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