“…Furthermore, low-income educational settings, which disproportionately serve children of color, tend to be relatively more rigid and to be characterized by, on average, lower quality learning and interaction opportunities compared with more sociodemographically advantaged settings (Duncan & Murnane, 2014). Thus, extending existing work on the inCLASS Hartz, Williford, & Koomen, 2017;Slot & Bleses, 2018;Vitiello, Booren, Downer, & Williford, 2012), the present study investigates (a) the measure's applicability in a high-poverty, mostly African American kindergarten sample; (b) associations between inCLASS and teacher reports of children's social skills and learning behaviors; and (c) characteristics at the time point, child, and classroom levels that contribute to inCLASS scores.…”