作者: L. M Mynors-Wallis
关键词: Beck Depression Inventory 、 Hamilton Rating Scale for Depression 、 Paroxetine 、 Randomized controlled trial 、 Depression (differential diagnoses) 、 Psychiatry 、 Psychological intervention 、 Medicine 、 Treatment and control groups 、 Randomization
摘要: … Assuming a clinically significant difference of 3 on the scale, we calculated that a sample size of 160 (that is, 40 per group) would result in a power of 0.90 at 5% significance based on …