“…Because students’ performance in gateway STEM courses has been shown to be a leading factor in STEM retention (Maton, Hrabowski III, & Schmitt, 2000; Becvar, Saupe, Noveron, & Narayan, 2008; Haak, HilleRisLambers, Pitre, & Freeman, 2011), STREAMS sought to increase STEM retention by improving student performance in gateway courses. STREAMS’s approach emphasized inquiry-based, small-group, peer-cooperative learning (Graham, Frederick, Byars-Winston, Hunter, & Handelsman, 2013; Summers & Hrabrowski, 2006; Dweck, 1986; Light & Micari, 2013; Deslauriers, Schelew, & Wieman, 2011; Froyd, 2007; Arendale, 2005), making this learning a required component of all students’ experience in gateway courses which posed the “highest risk” of attrition.…”