在抑郁症中重新定义心理治疗RCT的效果大小解释
Anders Nordahl-Hansen1, Hugo Cogo-Moreira1, Sareh Panjeh2
1Department of Education, ICT and Learning, Østfold University College, Halden, Norway.
Journal of psychiatric research
|November 24, 2023
概括
抑郁症心理治疗的新效果大小值为0.27 (小),0.53 (中等) 和0.86 (大). 这些基于随机对照试验 (RCT) 的经验推导值高于以前的指导方针.
科学领域:
- 精神病学和心理健康 精神病学和心理健康
- 临床心理学 临床心理学
- 生物统计学 生物统计学
背景情况:
- 效应大小对于解释研究规模和规划研究功率至关重要.
- 雅各布·科恩对效果大小的准则取决于上下文,可能不适合所有人群.
- 对于特定的研究领域,如抑郁症心理治疗,需要经验性值.
研究的目的:
- 在抑郁症中建立心理治疗随机对照试验 (RCT) 的经验性衍生效果大小值.
- 为了计算特定于抑郁症治疗干预的效果大小分布.
- 为解释结果和进行功率分析提供特定背景的基准.
主要方法:
- 从366个关于抑郁症心理治疗的RCT中提取了效果大小 (Cuijpers等, 2020).
- 计算了第25个 (小),第50个 (中) 和第75个 (大) 百分位数效应大小.
- 根据出版偏差进行调整,以确定可靠的效果大小值.
主要成果:
- 在出版偏差调整后,抑郁症心理治疗的经验衍生效果大小值为0.27 (小),0.53 (中等) 和0.86 (大).
- 这些值明显大于常用的科恩指南 (0.2,0.5,0.8).
- 在抑郁症心理治疗RCT中效果大小的分布支持了这些新的基准.
结论:
- 对于抑郁症的心理治疗,建立了经验衍生的效果大小值.
- 强调了一般指导方针 (科恩指导方针) 对这一特定背景的不足.
- 强调了这些新值对于准确解释研究结果和未来研究中的功率计算的重要性.
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