Supported Online Self-Help for Veterans With Depression in Primary Care

Patient Health Questionnaire (PHQ-9)

The Patient Health Questionnaire (PHQ-9) is a scale commonly used to measure and categorize depression symptoms. It is already administered as part of routine primary care at our study site. The minimum score is 0, the maximum is 27. A higher score indicates a worse outcome (i.e. more severe depression symptoms).

Behavioral Activation for Depression Scale (BADS-SF)

The 9-item Behavioral Activation for Depression Scale (BADS-SF) will also be used to examine behavioral activation as an intermediary to depression symptomatology outcomes. The minimum score is 0, the maximum is 54. Higher scores indicate a better outcome (i.e., higher activation).

Generalized Anxiety Disorder (GAD-7)

The 7-item Generalized Anxiety Disorder (GAD-7) is among the most commonly used and best validated anxiety measures in primary care settings. The minimum score is 0, the maximum is 21. Higher scores indicate a worse outcome (i.e., more severe anxiety). For reference: scores of 0-4=minimal anxiety, 5-9=mild anxiety, 10-14=moderate anxiety, and 15-21=severe anxiety.

World Health Organization Disability Assessment Schedule (WHODAS 2.0)

The World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) 12-item version is a brief self-report measure that will be used to assess functioning and disability across multiple domains of daily life. The minimum score is 0, and the maximum score is 48. Higher scores indicate greater disability.

Treatment Engagement

Treatment engagement will be conceptualized as the number of cCBT sessions completed. A higher number indicates more cCBT sessions completed, but isn't indicative of a better or worse outcome.