Acceptance and commitment therapy (ACT) is an emerging evidenced-based practice based on a psychological flexibility model encompassing six processes, including acceptance, cognitive defusion, self-as-context, being present, values, and committed action. ACT aims to improve overall psychological flexibility and the six processes. This systematic review and meta-analysis examined the effects of ACT on measures of purported processes among family caregivers. Four electronic databases were searched from the date of inception of each database to March 30, 2020. A total of 18 studies met the eligibility criteria, including 8 randomized controlled trials (RCTs), 1 nonrandomized control group pretest-posttest design study, and 9 one group pretest-posttest design studies. A meta-analysis of 8 RCTs found a moderate effect of ACT on psychological flexibility among family caregivers at the immediate posttest and follow-up. A meta-analysis of 9 one group pretest-posttest design studies showed a large effect of ACT on psychological flexibility at the immediate posttest and follow-up. No significant effect was found in measures of cognitive fusion, valued living, and mindfulness except for a meta-analysis of 2 RCTs showing a small effect of ACT on cognitive fusion at follow-up. This review discusses synthesized findings, a gap in the literature, and suggestions for future studies.

接受和承诺治疗（ACT）是一种基于循证医学的新兴实践，基于一种心理灵活性模型，包含六个过程，包括接受，认知消退，自我照应，存在，价值观和承诺行动。ACT旨在提高整体的心理灵活性和六个过程。这项系统的回顾和荟萃分析检查了ACT对家庭看护人声称的过程的措施的影响。从每个数据库的创建日期到2020年3月30日，共检索了四个电子数据库。总共有18项符合资格标准的研究，包括8项随机对照试验（RCT），1项非随机对照组的前测后测设计研究和9项一组前测-后测设计研究。对8项RCT进行的荟萃分析发现，在立即进行的后测和随访中，ACT对家庭看护人的心理灵活性有中等程度的影响。对9组一组前测-测后设计研究的荟萃分析显示，在立即测后和随访中，ACT对心理柔韧性有很大影响。除了对2个RCT的荟萃分析显示，在随访中ACT对认知融合的影响不大外，在认知融合，有价值的生活和正念方面，没有发现显着影响。这篇综述讨论了综合的发现，文献中的空白以及对未来研究的建议。除了对2个RCT的荟萃分析显示，在随访中ACT对认知融合的影响不大外，在认知融合，有价值的生活和正念方面，没有发现显着影响。这篇综述讨论了综合的发现，文献中的空白以及对未来研究的建议。除了对2个RCT的荟萃分析显示，在随访中ACT对认知融合的影响不大外，在认知融合，有价值的生活和正念方面，没有发现显着影响。这篇综述讨论了综合的发现，文献中的空白以及对未来研究的建议。