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Psychometrics of a brief measure of anxiety to detect severity and impairment: The overall anxiety severity and impairment scale (OASIS)
Open accessAbstract
Brief measures of anxiety-related severity and impairment that can be used across anxiety disorders and with subsyndromal anxiety are lacking. The Overall Anxiety Severity and Impairment Scale (OASIS) have shown strong psychometric properties with college students and primary care patients. This study examines sensitivity, specificity, and efficiency of an abbreviated version of the OASIS that takes only 2-3 min to complete using a non-clinical (college student) sample. 48 participants completed the OASIS and SCID for anxiety disorders, 21 had a diagnosis of ≥1 anxiety disorder, and 4 additional participants had a subthreshold diagnosis. A cut-score of 8 best discriminated those with anxiety disorders from those without, successfully classifying 78% of the sample with 69% sensitivity and 74% specificity. Results from a larger sample (n = 171) showed a single factor structure and excellent convergent and divergent validity. The availability of cut-scores for a non-clinical sample furthers the utility of this measure for settings where screening or brief assessment of anxiety is needed.
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“The OASIS has demonstrated strong psychometric properties with good internal consistency (alpha = 0.80), test-retest reliability (K = 0.82), and convergent validity [70–72].”
From Protocol for a randomized controlled dismantling study of an internet-based intervention for depressive symptoms: Exploring the contribution of behavioral activation and positive psychotherapy strategies (2019) · cites this paper as [72]
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“An OASIS cut score of 8 has shown to discriminate between those with anxiety disorders and those without (Norman et al., 2011).”
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“…( M = 9.44, SD = 5.26) in the sample were above the clinical cutoffs for probable depression (ODSIS ≥ 8; Bentley et al., 2014) and anxiety (OASIS ≥ 8; Norman et al., 2011), respectively., Further 66.1% of the overall sample met criteria for probable anxiety and 62.5% met criteria for probable…”
InfluentialZvolensky, M. J., Smit, T., Salwa, A., Clausen, B. K., Robison, J. H., Raines, A. M., & Vujanovic, A. A. (2025) · Substance Use & Misuse · doi:10.1080/10826084.2024.2447418
“Psychometric work suggests that the OASIS total score is strongly related to anxiety disorder diagnosis and shows strong convergent and divergent validity (Norman et al., 2011), as well as having a reliable cutoff for distinguishing anxiety disorder diagnoses (Campbell-Sills et al., 2009).”
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“Based on previous research (Campbell-Sills et al. 2009; Norman et al. 2011; Moore et al. 2015), participants were classified as having clinically elevated levels of anxiety if they scored 8 or higher on the OASIS.”
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Metadata
- Authors
- Norman, S. B., Campbell-Sills, L., Hitchcock, C. A., Sullivan, S., Rochlin, A., Wilkins, K. C., & Stein, M. B.
- Affiliations
- University of California San Diego (US)
- Alliant University (US)
- University of California, Los Angeles (US)
- San Diego State University (US)
- Corresponding author
- Norman, Sonya B.
- Venue
- Journal of Psychiatric Research
- Publisher
- Elsevier BV
- Published
- 2011-02
- Volume
- 45
- Issue
- 2
- Pages
- 262-268
- ISSN
- 0022-3956 (ISSN-L)
- PMC
- PMC2970755
- OpenAlex
- W2039588780
- Cited by
- 140
- References
- 34
- Citations by year
- 2026: 15 · 2025: 10 · 2024: 11 · 2023: 21 · 2022: 12 · 2021: 12 · 2020: 9 · 2019: 13 · 2018: 10 · 2017: 8 · 2016: 3 · 2015: 4 · 2014: 7 · 2013: 3 · 2012: 2
- FWCI
- 2.08
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Journal of Psychiatric Research (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute on Alcohol Abuse and Alcoholism (K23AA015707)
- National Institute of Mental Health (MH-64122, MH 65413, K24MH064122, R01MH065413, MH057835)
- 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
- anxiety levels, cut-off values, sensitivity and specificity, factor structure, convergent validity, subthreshold anxiety, university students, primary care, anxiety disorders
- MeSH terms
- Adolescent, Anxiety, Factor Analysis, Statistical, Female, Humans, Interpersonal Relations, Male, Psychiatric Status Rating Scales, Psychometrics, Sensitivity and Specificity, Statistics as Topic, Reproducibility of Results, Young Adult
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