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The reliability analysis of the scales.
| The instruments/questions | Number of items | Domains/ Sum score | Reliability- Cronbach's alpha coefficient | |
|---|---|---|---|---|
| Perceived stress | The Perceived Stress Scale (PSS) | 10 | Sum score | 0.810 |
| Resilience | EGO Resilience Scale | 14 | Sum score | 0.957 |
| Prenatal depression | Center for Epidemiologic Studies Depression Scale (CES-D) | 20 | Sum score | 0.855 |
