Table 2.
Statistical comparison of the HCL-32 data between Iranian out-patients and patients suffering from major depressive disorders (MDD) and bipolar disorder (PB) from other countries.
| Samples from other countries | |||
|---|---|---|---|
| Northern Europe | South America | East Asia | |
| N | 672 | 423 | 631 |
| HCL-32 total score (M and SD) | 17.10 (6.00) | 16.45 (6.05) | 15.50 (6.70) |
| Iranian sample | |||
| MDD (N = 61) | |||
| HCL-32 total score (M and SD) | 17.26 (6.39) | 17.26 (6.39) | 17.26 (6.39) |
| t-tests (df = 60) | t = 0.20; p = .84 | t = 0.99; p = .32 | t = 2.15; p = .041 |
| Effect sizes d | 0.025 | 0.085 | 0.2681 |
| BP (N = 102) | |||
| HCL-32 total score (M and SD) | 19.83 (5.50) | 19.83 (5.50) | 19.83 (5.50) |
| t-tests (df = 101) | t = 8.96; p = .000 | t = 6.21; p = .000 | t = 7.95; p = .000 |
| Effect sizes d | 0.47 | 0.58 | 0.71 |
Notes: HCL-32 = Hypomania Check-List 32. MDD = major depressive disorders; BP = bipolar disorders. 1 Note that even if the p-value suggests a significant mean difference, the effect size of 0.268 indicates that the mean difference was small and of negligible practical importance.