This scale determines the severity of depression symptoms. Validated in Spanish [51] with Cronbach alpha ≥0.7, intraclass correlation coefficient (ICC) ≥0.9, interrater reliability (ICC) ≥0.9, and sensitivity to change (effect size) ≥1.5 [51]. The National Institute for Health and Care Excellence (NICE) recommends 18 points or less for mild and moderate cases and 19 points or more for severe cases [52].
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