Final models and associated estimates for predicting students’ performance on the post-test and which students report a dominator, being comfortable, and working with a friend.

Coefficients are presented as odds (transformed from logodds); models were fit as cumulative link mixed models (postscore, dominator, comfort) or logistic regression (friend; see methods for details). Bolded coefficients represent statistical significance to α = 0.05. Grey cells indicate variables that were not included in the full model, empty cells indicate variables that were included in the full model and then were dropped during the model selection process. Superscripted notes indicate starting models and additional notes.