ABSTRACT

The current study investigated the impact of an 8-module internet-based cognitive behaviour therapy for perfectionism (ICBT-P) across a variety of perfectionism subscales. Undergraduate students who identified as having a problem with perfectionism were randomized to receive the intervention (n = 41), and were free to choose the number of treatment modules they completed over a 4-week period, while the control group (N = 48) received access to treatment 8 weeks post-randomisation. Secondary measures included depression, anxiety, stress, body image and self-compassion. Assessments occurred at baseline, 2-, 4- and 8-week time points. A mean of 3.12 (SD = 2.67) modules were completed; 7 participants (17%) completed none and 6 (15%) completed all. Linear mixed modelling (with baseline observation included as a covariate) showed significant Bonferroni-adjusted post-hoc between-group differences for 5 of the 6 perfectionism measures, favouring the intervention group; the most robust between group effect sizes were for the Concern over Mistakes (d = −0.82), High Standards (d = −0.69), and Perfectionistic Standards (d = −0.47) subscales. There were no between-group differences for our secondary measures. ICBT-P was found to be an effective intervention for reducing different components of perfectionism compared to a control group. The relatively low use of modules may have contributed to a lack of effect on secondary measures.

Australian New Zealand Clinical Trials Registry (ANZCTR) Trial Number: ACTRN12620000562976

摘要

目前的研究调查了基于互联网的 8 模块完美主义认知行为疗法 (ICBT-P) 对各种完美主义子量表的影响。确定有完美主义问题的本科生被随机分配接受干预（n = 41），并且可以自由选择他们在 4 周内完成的治疗模块数量，而对照组（N = 48）随机化后 8 周接受治疗。次要指标包括抑郁、焦虑、压力、身体形象和自我同情。评估发生在基线、2 周、4 周和 8 周时间点。平均完成了 3.12 (SD = 2.67) 个模块；7 名参与者 (17%) 未完成，6 名 (15%) 全部完成。线性混合模型（基线观察作为协变量）显示 6 项完美主义测量中有 5 项的 Bonferroni 调整后组间差异显着，有利于干预组；组效应大小之间最稳健的是对错误的关注（d = -0.82)、高标准 ( d = -0.69) 和完美主义标准 ( d = -0.47) 分量表。我们的次要测量没有组间差异。与对照组相比，ICBT-P 被发现是减少完美主义不同成分的有效干预措施。模块的使用率相对较低可能导致对辅助措施缺乏影响。

澳大利亚新西兰临床试验注册中心 (ANZCTR) 试验编号：ACTRN12620000562976