Table 1 Common Elements Treatment Approach (CETA) trial aim 1 evaluation measures
Measures | Description of measure | Number of items | Cronbach’s alpha | Test-retest reliability | Area under the curvea |
|---|---|---|---|---|---|
Primary outcomes | |||||
Depression symptoms | Items taken from the International Depression Symptom Scale (IDSS), a measurement instrument designed to represent global presentations of depression [27] | 8 | α = 0.89 | Rho = 0.87 | AUC = 0.78 |
Post-traumatic stress symptoms | Items taken from the Global Post Traumatic Stress Symptom Scale (GPTSSS) [28] | 12 | α = 0.91 | Rho = 0.87 | AUC = 0.68 |
Impaired function | A combination of items from the WHODAS [36] and a locally derived function scale based on qualitative data [37] | 8 | α = 0.88 | Rho = 0.94 | AUC = 0.72 |
Secondary outcomes | |||||
Anxiety symptoms | Items taken from the Hopkins Symptom Checklist Anxiety sub-scale | 4 | α = 0.82 | Rho = 0.80 | -- b |
Alcohol use | Items taken from the ASSIST alcohol sub-scale [29] | 2 | – | Rho = 0.80 | AUC = 0.90 |