Cited by 365Anxiety, Depression, Psychometrics, Treatment, Cognitive ProcessesPsychometric Methodologies and TestingMental Health Research Topics

Development and validation of the overall depression severity and impairment scale

Bentley, Kate H., Gallagher, Matthew W., Carl, Jenna R., Barlow, David H.·2014·Psychological Assessment

Abstract

The need to capture severity and impairment of depressive symptomatology is widespread. Existing depression scales are lengthy and largely focus on individual symptoms rather than resulting impairment. The Overall Depression Severity and Impairment Scale (ODSIS) is a 5-item, continuous measure designed for use across heterogeneous mood disorders and with subthreshold depressive symptoms. This study examined the psychometric properties of the ODSIS in outpatients in a clinic for emotional disorders (N = 100), undergraduate students (N = 566), and community-based adults (N = 189). Internal consistency, latent structure, item response theory, classification accuracy, convergent and discriminant validity, and differential item functioning analyses were conducted. ODSIS scores exhibited excellent internal consistency, and confirmatory factor analyses supported a unidimensional structure. Item response theory results demonstrated that the ODSIS provides more information about individuals with high levels of depression than those with low levels of depression. Responses on the ODSIS discriminated well between individuals with and without a mood disorder and depression-related severity across clinical and subclinical levels. A cut score of 8 correctly classified 82% of outpatients as with or without a mood disorder; it evidenced a favorable balance of sensitivity and specificity and of positive and negative predictive values. The ODSIS demonstrated good convergent and discriminant validity, and results indicate that items function similarly across clinical and nonclinical samples. Overall, findings suggest that the ODSIS is a valid tool for measuring depression-related severity and impairment. The brevity and ease of use of the ODSIS support its utility for screening and monitoring treatment response across a variety of settings.

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Crossref · 10.1037/a0036216

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Authors
Bentley, K. H., Gallagher, M. W., Carl, J. R., & Barlow, D. H.
Affiliations
  • Boston University (US)
  • VA Boston Healthcare System (US)
Venue
Psychological Assessment
Published
2014-09
Volume
26
Issue
3
Pages
815-830
ISSN
  • 1040-3590 (ISSN-L)
  • 1939-134X
OpenAlex
W2314347555
Cited by
365
References
50
Citations by year
2026: 47 · 2025: 48 · 2024: 41 · 2023: 51 · 2022: 53 · 2021: 27 · 2020: 17 · 2019: 12 · 2018: 14 · 2017: 38 · 2016: 8 · 2015: 6 · 2014: 3
FWCI
25.51
Type
journal article
Language
en
Open access
closed
Locations
  • Psychological Assessment (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • 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
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Mental Health Research Topics
Keywords
depression severity, functional disability, mood disorders, subthreshold depression, screening, treatment response monitoring, psychometric validation, differential item functioning, item response theory, unidimensionality
MeSH terms
Adolescent, Adult, Aged, Depression, Depressive Disorder, Major, Major Depressive Disorder, Depressive Disorder, Female, Humans, Male, Middle Aged, Psychiatric Status Rating Scales, Psychometrics, Severity of Illness Index, Dysthymic Disorder, Young Adult

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