“…Given the role of visual analysis in analyzing outcomes of single‐case design research, we excluded single‐case designs in which authors did not graphically display results (Manolov, Losada, Chacon‐Moscoso, & Sanduvete‐Chaves, 2016). Dissertations were included due to concerns regarding publication bias related to the exclusion of unpublished studies and the ability to control for study rigor through the application of quality indicators (Chitiyo, King, Krizon, Ablakwa, & Markelz, 2020; King, Davidson, Chitiyo, & Apple, 2020a). We excluded master's theses and other unindexed gray literature given the potential of partially included source material to bias results (Ferguson & Brannick, 2012).…”