“…Teacher characteristics: for example, equitable behavior, questioning ability, communication, background (Chin & Brown, 2000;Haussler & Hoffmann, 2002;Labudde et al, 2000;She & Fisher, 2002). Student characteristics: for example, SAT scores, math/science achievement, GPA, socio-economic background, motivations, self-perceptions, perceptions about science/scientists (Bonham, Deardorff, & Beichner, 2003;Carlone, 2004;Cavallo et al, 2004;Cleaves, 2005;Hazari et al, 2007;Jones et al, 2000;Morgan et al, 2001;Norvilitis, Reid, & Norvilitis, 2002;Stokking, 2000;Tai et al, 2005). Relationship with peers, family, and other significant adults: for example, encouragement (Andre et al, 1999;Bleeker & Jacobs, 2004;Cleaves, 2005;Gilbert & Yerrick, 2001;Hatchell, 1998;Hazari et al, 2007;Johnson, 1999;Lee, 2002;Smith & Hausafus, 1998;Tai et al, 2005).…”