Reliability and validity of a depression rating scale for schizophrenics

Addington, Donald; Addington, Jean; Maticka-Tyndale, Eleanor; Joyce, Joan

doi:10.1016/0920-9964(92)90003-n

Cited by 651Schizophrenia research and treatmentAnxiety, Depression, Psychometrics, Treatment, Cognitive ProcessesPsychometric Methodologies and Testing

Reliability and validity of a depression rating scale for schizophrenics

Addington, Donald, Addington, Jean, Maticka-Tyndale, Eleanor, Joyce, Joan·1992·Schizophrenia Research

DOI 10.1016/0920-9964(92)90003-n

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Abstract

The Calgary Depression Scale (CDS) is a nine item structured interview scale, in which each item has a four point measure, each point anchored by descriptors. The scale has been specifically developed to assess depression in schizophrenics. This article describes the testing of the reliability and validity of the CDS. The scale is assessed and compared to three established measures, the Hamilton Depression Rating Scale (HDRS) the Beck Depression Inventory (BDI) and a depression measure derived from the Brief Psychiatric Rating Scale (BPRS). Confirmatory factor analysis demonstrated that the CDS is unidimensional, measuring the same construct in both in- and outpatients. The scale has high internal consistency, significant strong correlations with scores on the Hamilton, Beck and BPRS depression measures, and the presence of a major depressive episode. All items of the CDS significantly discriminate between the presence and absence of a major depressive episode. It is concluded that the CDS is a parsimonious reliable scale which is suitable for assessing depression across both the acute and residual stages of schizophrenia.

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The CDSS has excellent psychometric properties, internal consistency, inter-rater reliability, and discriminant and convergent validity.
“The scale is reported to have excellent psychometric properties, internal consistency, inter-rater reliability, and discriminant and convergent validity.45”
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 [45]

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Authors: Addington, D., Addington, J., Maticka-Tyndale, E., & Joyce, J.
Affiliations: University of Calgary (CA)
McMaster University (CA)
Corresponding author: Addington, Donald
ORCID: Addington, Donald
Addington, Jean
Venue: Schizophrenia Research
Publisher: Elsevier BV
Published: 1992-03
Volume: 6
Issue: 3
Pages: 201-208
ISSN: 0920-9964 (ISSN-L)
DOI: 10.1016/0920-9964(92)90003-n
OpenAlex: W2031192891
Cited by: 651
References: 3
Citations by year: 2026: 8 · 2025: 17 · 2024: 24 · 2023: 16 · 2022: 27 · 2021: 25 · 2020: 37 · 2019: 35 · 2018: 28 · 2017: 36 · 2016: 33 · 2015: 30 · 2014: 31 · 2013: 45 · 2012: 31
FWCI: 1.08
Type: journal article
Language: en
Open access: closed
Licence: www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations: Schizophrenia Research (publishedVersion)
PubMed (publishedVersion)
Topics: Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
Social Sciences › Decision Sciences › Management Science and Operations Research › Psychometric Methodologies and Testing
Keywords: depression in schizophrenia
MeSH terms: Adult, Depressive Disorder, Female, Humans, Male, Psychiatric Status Rating Scales, Psychometrics, Schizophrenia, Schizophrenic Psychology, Reproducibility of Results

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Reliability and validity of a depression rating scale for schizophrenics

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