“…Second, college-level curricula typically draw on textbooks that present evidence that sexual orientation is under biological control (Barker, 2007). Third, many surveys have found that heterosexual people who score lower on measures of sexual prejudice consider sexual orientation to be biologically determined or fixed, rather than learned or freely chosen (Aguero, Block, & Byrne, 1984;Eldridge, Mack, & Swank, 2006;Ernulf, Innala, & Whitam, 1989;Haslam & Levy, 2006;Haslam Rotschild, & Ernst, 2002;Hegarty, 2002;Hegarty & Pratto, 2001;Herek & Capitanio, 1995;Horvath & Ryan, 2003;Jayaratne, Ybarra, Sheldon, Brown, Feldbaum, Pfeffer, & Petty, 2006;Malcomnson, Christopher, Franzen, & Keyes, 2006;Sakalli, 2002;Whitley, 1990).…”