“…Single-sex education has also been used within schools to teach girls and boys in separate classrooms as a way to arguably address their unique interest and learning styles, to minimize distractions and disciplinary issues, and to increase scores on high-stakes achievement tests (Chouinard, Vezeau, and Bouffard, 2008;DeBare, 2004;Meyer, 2008). The results on the effectiveness of single-sex classrooms, however, have remained mixed (e.g., Bofah & Hannula, 2016;Bowe, Desjardins, Covington Clarkson, & Lawrenz, 2017;Kombe, Che, Carter, & Bridges, 2016;Pahlke, Hyde, & Allison, 2014;Park, Behrman, & Choi, 2018). There has been a great deal of confusion in the literature regarding how to isolate and associate changes in achievement to single-sex education alone.…”