Outcome
| Type |
Measure |
Description |
Time frame |
Safety issue |
| Primary |
Number of substance use occasions |
Number of substance use occasions in the past 30 days |
Change from Baseline to Mid-treatment at 4 weeks; Change from Baseline to Post-treatment at 8 weeks; Change from Baseline to Follow-up at 12 weeks |
|
| Secondary |
Drug Abuse Screening Test (DAST-10) |
Measure of drug abuse related consequences. The DAST-10 is a brief, 10-item self-report measure that assesses consequences related to drug abuse, excluding alcohol and tobacco. The range is 0-10, where higher scores indicate greater severity. Adapted from past 12 months to past 30 days. |
Change from Baseline to Post-treatment at 8 weeks |
|
| Secondary |
Working Alliance Inventory (WAI-SR) |
Measure of working alliance. A measure of therapeutic alliance that assesses three key aspects of the therapeutic alliance: (a) agreement on the tasks of therapy, (b) agreement on the goals of therapy and (c) development of an affective bond. Scores range from 5-20, with higher scores indicating greater alliance. The present study utilized the validated 12-item Short-Revised version (WAI-SR) with minor changes to language, replacing "therapist" with "Woebot". |
Change from Mid-treatment at 4 weeks to Post-treatment at 8 weeks |
|
| Secondary |
Stanford Presenteeism Scale (SPS-6) |
Measure of workforce productivity. A six item measure derived from a 34 item measure of workforce productivity impacted by health status. The 6-item scale has excellent psychometric properties and has been validated. |
Change from Baseline to Post-treatment at 8 weeks |
|
| Secondary |
Thoughts About Abstinence (TAA) |
Measure of thoughts about abstinence. Modified for alcohol and substances. 5-item questionnaire assessing desire to quit, expected success at quitting, expected difficulty of quitting, and confidence in ability to quit measured on 10-point Likert scales. The fifth item assesses partcipants' abstinence goal. |
Change from Baseline to Post-treatment at 8 weeks |
|
| Secondary |
Usage Rating Profile - Intervention (URPI)-Acceptability |
Measure of acceptability. A 6-item subscale that inquires about intervention acceptability. Responses range from 1 = "strongly disagree" to 6 = "strongly agree". Scores are averages, with greater scores indicating greater intervention acceptability. |
Post-treatment (8 weeks from Baseline) |
|
| Secondary |
Usage Rating Profile - Intervention (URPI)-Feasibility |
Measure of feasibility. A 6-item subscale that inquires about factors that impact treatment usage (i.e., intervention quality). Responses range from 1 = "strongly disagree" to 6 = "strongly agree". Scores are averages, with greater scores indicating greater intervention feasibility. |
Post-treatment (8 weeks from Baseline) |
|
| Secondary |
Client Satisfaction Questionnaire (CSQ) |
Measure of satisfaction. An 8-item measure used to assess client's satisfaction with treatment on a 4-point scale. Example questions include, "How would you rate the quality of service you received"? and "Did you get the kind of service you wanted?" Total sums range from 8-32, with high scores indicating greater satisfaction with the W-SUDs mobile application. |
Post-treatment (8 weeks from Baseline) |
|
| Secondary |
Short Inventory of Problems- Alcohol and Drugs (SIP-AD) |
Measure of substance use problems. The SIP-AD assesses substance use problems in the past 30 days. The scored variables, total scores and 15-item mean, summarize consequences of alcohol and drug use. Scores range from 0-45, where greater scores indicate greater substance use problems. |
Change from Baseline to Mid-Treatment at 4 weeks; Change from Baseline to Post-treatment at 8 weeks; Change from Baseline to Follow-up at 12 weeks |
|
| Secondary |
Patient Health Questionnaire (PHQ-8) |
Measure of depression. An 8-item self-report questionnaire that assesses the frequency and severity of depression symptoms. Total scores range from 0 to 24 where higher scores indicate greater levels of depression. |
Change from Baseline to Mid-treatment at 4 weeks; Change from Baseline to Post-treatment at 8 weeks; Change from Baseline to Follow-up at 12 weeks |
|
| Secondary |
Generalized Anxiety Disorder (GAD-7) |
Measure of anxiety. A 7-item brief self-report measure used to assess the frequency and severity of anxious thoughts and behaviors over the past 2 weeks. Total score between 0-21, where higher scores indicate greater levels of anxiety. |
Change from Baseline to Mid-treatment at 4 weeks; Change from Baseline to Post-treatment at 8 weeks; Change from Baseline to Follow-up at 12 weeks |
|
| Secondary |
Brief Situational Confidence Questionnaire (BSCQ) |
Measure of self-confidence. The 8-item BSCQ is a state dependent measure that assesses self-confidence to resist the urge to drink heavily or use drugs in a variety of situations. Each of the 8 scale situations consists of a 100-mm line, anchored by 0% ("not at all confident") and 100% ("totally confident") where clients are asked to indicate confidence on a scale from 0% to 100%. Higher scores are associated with greater confidence. |
Change from Baseline to Mid-treatment at 4 weeks; Change from Baseline to Post-treatment at 8 weeks; Change from Baseline to Follow-up at 12 weeks |
|
| Secondary |
Craving Ratings |
Measure of craving. A self-reported rating of craving intensity. |
Change from Baseline to Mid-treatment at 4 weeks; Change from Baseline to Post-treatment at 8 weeks; Change from Baseline to Follow-up at 12 weeks |
|
| Secondary |
Quick Drinking Screen (QDS) |
Measure of alcohol use. A self-report measure used to assess alcohol use including quantity consumed, frequency of drinking, and binge incidences. |
Change from Baseline to Mid-treatment at 4 weeks; Change from Baseline to Post-treatment at 8 weeks; Change from Baseline to Follow-up at 12 weeks |
|
