“…Often, choice is more preferred and is a relatively more potent reinforcer than no choice across a variety of species and populations (Catania & Sagvolden, 1980;Cerutti & Catania, 1997;Fenerty & Tiger, 2010;Geckeler, Libby, Graff, & Ahearn, 2000;Schmidt et al, 2009;Sran & Borrero, 2010;Thompson, Fisher, & Contrucci, 1998;Tiger et al, 2006;Tiger, Toussaint, & Roath, 2010;Voss & Homzie, 1970). Several studies have shown that not only is choice more preferred or a more potent reinforcer but also the preference for choice is relatively strong and sometimes resistant to change (e.g., Thompson et al, 1998;Tiger et al, 2006Tiger et al, , 2010.…”