Cannon Joanna E, Guardino Caroline, Antia Shirin D, Luckner John L
Am Ann Deaf. 2016 Winter;160(5):440-52. doi: 10.1353/aad.2016.0007.
The field of education of deaf and hard of hearing (DHH) students has a paucity of evidence-based practices (EBPs) to guide instruction. The authors discussed how the research methodology of single-case design (SCD) can be used to build EBPs through direct and systematic replication of studies. An overview of SCD research methods is presented, including an explanation of how internal and external validity issues are addressed, and why SCD is appropriate for intervention research with DHH children. The authors then examine the SCD research in the field according to quality indicators (QIs; at the individual level and as a body of evidence) to determine the existing evidence base. Finally, future replication areas are recommended to fill the gaps in SCD research with students who are DHH in order to add to the evidence base in the field.
聋人和重听（DHH）学生的教育领域缺乏循证实践（EBP）来指导教学。作者们讨论了单病例设计（SCD）的研究方法如何能够通过对研究进行直接和系统的复制来构建循证实践。本文概述了SCD研究方法，包括对如何解决内部和外部效度问题的解释，以及为何SCD适用于对DHH儿童的干预研究。作者们随后根据质量指标（QI；在个体层面以及作为一个证据体系）审视该领域的SCD研究，以确定现有的证据基础。最后，建议未来的复制研究领域，以填补针对DHH学生的SCD研究中的空白，从而增加该领域的证据基础。
