“…In addition, prior SDT research suggested substantial differences between students in the levels of need-supportive teaching they received (e.g., Domen, Hornstra, Weijers, Van der Veen, & Peetsma, 2018;Reeve, 2009). Specifically, studies that have examined the distribution of variance in student perceptions of need-supportive teaching have indicated that teachers differentiate between students; that is, class-level intraclass correlations (ICCs) of student perceptions of need-supportive teaching have been found to vary from .05 to .31 (Bieg, Backes, & Mittag, 2011;Danielsen, Wiium, Wilhemsen, & Wold, 2010;Hospel & Galand, 2016) and from .24 to .31 for teachers' student-specific perceptions of need-supportive teaching (Domen et al, 2018). These results indicate that most variance in these variables is situated within classes rather than between classes.…”