The authors conducted a systematic review of the literature including studies that used a single-case design (SCD) and taught augmentative and alternative communication (AAC) use to adults with complex communication needs. The purpose of this review was to describe (a) adults receiving AAC intervention, (b) components of the interventions used, and (c) how the literature met quality standards set by the What Works Clearinghouse (WWC). Across the 12 SCD studies included, a total of 28 adults with complex communication needs received intervention. As part of the intervention, the majority of the participants (n = 24; 86%) were introduced to new AAC systems (e.g., picture, communication application). Ten of 12 studies showed at least moderate evidence of effectiveness. Only three of 12 studies met the WWC standards without reservation. Findings from this review call for action to ensure quality AAC access and services are available to adults with complex communication needs.

作者对文献进行了系统的回顾，包括使用单案例设计（SCD）的研究，并向具有复杂交流需求的成年人传授了增强和替代交流（AAC）的用法。这篇综述的目的是描述（a）接受AAC干预的成年人，（b）所使用干预的组成部分，以及（c）文献如何满足What Works Clearinghouse（WWC）设定的质量标准。在包括的12项SCD研究中，共有28名具有复杂沟通需求的成年人接受了干预。作为干预措施的一部分，大多数参与者（n= 24; 86％的人被引入了新的AAC系统（例如图片，通信应用程序）。12项研究中的10项显示出至少中等程度的有效性证据。12项研究中只有3项毫无保留地达到了WWC标准。这次审查的结果需要采取行动，以确保有复杂交流需求的成年人都能获得高质量的AAC访问和服务。