Generalized Anxiety Disorder 7 (GAD-7)

CPP Cohort 4

The Generalized Anxiety Disorder 7 (GAD-7) is a self-report instrument that screens for generalized anxiety disorder by determining an adult’s level of anxiety symptoms.  Higher scores indicate greater severity of anxiety.

Descriptive Statistics: Pre- and post-treatment assessment measure means, standard deviations, and standard errors for the GAD-7 are listed in the table below, as well as the range of possible scores.

1A score of 8 has been suggested as an adequate cut-point for screening or identifying possible cases where further assessment for anxiety disorders may be warranted (Kroenke, Spitzer, Williams, Monahan, & Lowe, 2007).

Repeated Measures Analyses: Paired samples t-tests were conducted to examine pre-post group mean differences for the GAD-7 overall score.  Analyses did not show statistically significant change for the GAD-7 overall score.

GAD-7: Paired Sample T-Test

GAD-7: Pre-Post Treatment Mean Scores

Individual Clinically Significant Change: Individual clinically significant change for the GAD-7 overall score was based on the suggested screening cut-point of 10. At pre-treatment, 13 clients had GAD-7 overall scores at or above the cut-point of 10. Of note, 10 of these 13 clients were missing the GAD-7 overall score at post-treatment. Analysis of the clients with post-treatment data showed that the GAD-7 overall score for 1 of the 3 clients (33%) decreased below the cut-point of 10.


*Spitzer, R.L., Kroenke, K., Williams, J.B.W., & Lowe, B. (2006). A brief measure for assessing generalized anxiety disorder. Archives of Internal Medicine, 166, 1092-1097

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