Explanation of “Quality Indicators of Single-Subject Experimental Research Studies” Rubric Using Studies Focused on Teaching Mathematics Skills

Evidence-based practices have become a subject of further consideration among experts, researchers and practitioners in the field of special education in recent years. In this study, we described (a) how quality indicators developed by Horner and colleagues (2005) for single-subject experimental research designs could be used to determine quality of single-subject experimental research studies using studies focused on teaching mathematical skills to individuals with developmental disabilities and (b) how these indicators could be used to determine whether a study meets acceptability standards developed by Horner et al. For this purpose, we provided examples of studies that met and failed to meet the quality indicators and explained in detail why the study met or did not meet certain criteria. We expect that this study will guide researchers and practitioners who conduct or evaluate studies and meta-analyses of studies employing single-subject experimental research designs in using quality indicators