Fig. 2From: Investigating the impact of peer supplemental instruction on underprepared and historically underserved students in introductory STEM coursesa Self-identified racial/ethnic demographic distribution of students enrolled in PSI-supported courses vs. students attending PSI sessions. b Self-identified racial/ethnic demographic distribution of students attending PSI sessions, separated by frequency of attendance (1–2, 3–5, 6–9, or 10 + PSI sessions for a given course within a single semester)Back to article page