Table 3 Reliability results of mental health symptom and functioning scales
Int’l depression symptom scale (IDSS) | Global post-traumatic stress scale (GPTSS) | HSCL anxiety sub-scale | ASSIST 3.0 alcohol scale | Local functioning scale | WHODAS 2.0 functioning scale | |
|---|---|---|---|---|---|---|
Internal consistency (α) | ||||||
Baseline sample (n = 153) | 0.94 | 0.97 | 0.90 | 0.86 | 0.92 | 0.95 |
Re-interview sample (n = 30) | 0.93 | 0.97 | 0.89 | 0.87 | 0.78 | 0.80 |
IRT-based analysis | ||||||
Shortened scale | 0.89 | 0.91 | 0.82 | – | – | – |
Test-retest (ρ) | ||||||
Re-interview sample | 0.84 | 0.87 | 0.80 | 0.91 | 0.85 | 0.90 |
IRT-based analysis | ||||||
Shortened scale | 0.87 | 0.87 | 0.80 | – | – | – |