Allison D B, Faith M S
Obesity Research Center St. Luke's-Roosevelt Hospital Center Columbia University College of Physicians and Surgeons, New York, New York 10025, USA.
J Consult Clin Psychol. 1996 Jun;64(3):513-6. doi: 10.1037//0022-006x.64.3.513.
I. Kirsch, G. Montgomery, and G. Sapirstein (1995) meta-analyzed 6 weight-loss studies comparing the efficacy of cognitive-behavior therapy (CBT) alone to CBT plus hypnotherapy and concluded that "the addition of hypnosis substantially enhanced treatment outcome" (p.214). Kirsch reported a mean effect size (expressed as d) of 1.96. After correcting several transcription and computational inaccuracies in the original meta-analysis, these 6 studies yield a smaller mean effect size (.26). Moreover, if 1 questionable study is removed from the analysis, the effect sizes become more homogeneous and the mean (.21) is no longer statistically significant. It is concluded that the addition of hypnosis to CBT for weight loss results in, at most, a small enhancement of treatment outcome.
I. 基尔希、G. 蒙哥马利和G. 萨皮尔斯坦（1995年）对6项减肥研究进行了荟萃分析，比较了单纯认知行为疗法（CBT）与认知行为疗法加催眠疗法的疗效，并得出结论：“增加催眠疗法显著提高了治疗效果”（第214页）。基尔希报告的平均效应量（以d表示）为1.96。在纠正了原始荟萃分析中的几个转录和计算错误后，这6项研究得出的平均效应量较小（0.26）。此外，如果从分析中剔除1项有问题的研究，效应量会变得更加同质，且平均值（0.21）不再具有统计学意义。得出的结论是，在减肥的认知行为疗法中增加催眠疗法最多只会使治疗效果略有提高。
