Establishment of a reliable change index for the GAD-7
Estabelecimento de um Índice de Mudança Confiável para o GAD-7
Author(s) / Creator(s)
Bischoff, Thomas
Anderson, Shayne R.
Heafner, Joy
Tambling, Rachel
Abstract / Description
Aim: It is increasingly important for mental healthcare providers and researchers to reliably assess client change, particularly with common presenting problems such as anxiety. The current study addresses this need by establishing a Reliable Change Index of 6 points for the GAD-7. Method: Sample size included 116 online community participants using Amazon’s Mechanical Turk (MTurk) and archival data for 332 clinical participants. Participants completed measures of the GAD-7 and the MDI in 2 rounds. Using previously established cutoff scores and Jacobson and Truax’s (1991) method, we establish a Reliable Change Index which, when applied to 2 administrations of the GAD-7, indicates if a client has experienced meaningful change. Results: For the GAD-7, the mean score for the clinical sample was 10.57. For the community sample at Time 1, the mean score was 4.14. A Pearson’s correlation was computed to assess the 14-28-day test-retest reliability of the GAD-7, r(110) = .87, indicating good test-retest reliability. Conclusion: Using the RCI equation, this resulted in an RCI of 5.59. For practical use the RCI would be rounded to 6.
Keyword(s)
reliable change index clinical significance clinically meaningful change anxiety GAD-7 índice de mudança confiável significância clínica mudança clinicamente significativa ansiedade GAD-7Persistent Identifier
Date of first publication
2020-04-08
Journal title
Psychology, Community & Health
Volume
8
Issue
1
Page numbers
176–187
Publisher
PsychOpen GOLD
Publication status
publishedVersion
Review status
peerReviewed
Is version of
Citation
Bischoff, T., Anderson, S. R., Heafner, J., & Tambling, R. (2020). Establishment of a reliable change index for the GAD-7. Psychology, Community & Health, 8(1), 176-187. https://doi.org/10.5964/pch.v8i1.309
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pch.v8i1.309.pdfAdobe PDF - 232.93KBMD5: 1410d0201ce01f5f48659e1fa7a6ca28
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Author(s) / Creator(s)Bischoff, Thomas
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Author(s) / Creator(s)Anderson, Shayne R.
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Author(s) / Creator(s)Heafner, Joy
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Author(s) / Creator(s)Tambling, Rachel
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PsychArchives acquisition timestamp2022-05-13T06:59:38Z
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Made available on2022-05-13T06:59:38Z
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Date of first publication2020-04-08
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Abstract / DescriptionAim: It is increasingly important for mental healthcare providers and researchers to reliably assess client change, particularly with common presenting problems such as anxiety. The current study addresses this need by establishing a Reliable Change Index of 6 points for the GAD-7. Method: Sample size included 116 online community participants using Amazon’s Mechanical Turk (MTurk) and archival data for 332 clinical participants. Participants completed measures of the GAD-7 and the MDI in 2 rounds. Using previously established cutoff scores and Jacobson and Truax’s (1991) method, we establish a Reliable Change Index which, when applied to 2 administrations of the GAD-7, indicates if a client has experienced meaningful change. Results: For the GAD-7, the mean score for the clinical sample was 10.57. For the community sample at Time 1, the mean score was 4.14. A Pearson’s correlation was computed to assess the 14-28-day test-retest reliability of the GAD-7, r(110) = .87, indicating good test-retest reliability. Conclusion: Using the RCI equation, this resulted in an RCI of 5.59. For practical use the RCI would be rounded to 6.en_US
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Publication statuspublishedVersion
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Review statuspeerReviewed
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CitationBischoff, T., Anderson, S. R., Heafner, J., & Tambling, R. (2020). Establishment of a reliable change index for the GAD-7. Psychology, Community & Health, 8(1), 176-187. https://doi.org/10.5964/pch.v8i1.309en_US
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ISSN2182-438X
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Persistent Identifierhttps://hdl.handle.net/20.500.12034/5974
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Persistent Identifierhttps://doi.org/10.23668/psycharchives.6657
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Language of contenteng
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PublisherPsychOpen GOLD
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Is version ofhttps://doi.org/10.5964/pch.v8i1.309
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Keyword(s)reliable change indexen_US
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Keyword(s)clinical significanceen_US
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Keyword(s)clinically meaningful changeen_US
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Keyword(s)anxietyen_US
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Keyword(s)GAD-7en_US
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Keyword(s)índice de mudança confiávelpt-PT
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Keyword(s)significância clínicapt-PT
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Keyword(s)mudança clinicamente significativa ansiedadept-PT
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Keyword(s)GAD-7pt-PT
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Dewey Decimal Classification number(s)150
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TitleEstablishment of a reliable change index for the GAD-7en_US
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Alternative titleEstabelecimento de um Índice de Mudança Confiável para o GAD-7pt-PT
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DRO typearticle
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Issue1
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Journal titlePsychology, Community & Health
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Page numbers176–187
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Volume8
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Visible tag(s)Version of Recorden_US