Fig. 6From: Investigating the impact of peer supplemental instruction on underprepared and historically underserved students in introductory STEM coursesComparison of the effects of PSI participation on final course GPA for students identifying with the four racial/ethnics group investigated here, separated by incoming HS GPA: a < 2.5 (n = 307), b 2.5–3.5 (n = 829), and c > 3.5 (n = 318)Back to article page