“…Variations of IF have been used in other disciplines and may be referred to as mapping (Carey & Bartlett, ) or vocal expansions (Scherer & Olswang, ). Results across a variety of studies suggest that learners may acquire both the primary and secondary targets, though responding was only explicitly required for the primary target (e.g., Delmolino, Hansford, Bamond, Fiske, & LaRue, ; Gast, Doyle, Wolery, Ault, & Kolenda, ; Leaf et al, ; Loughrey, Betz, Majdalany, & Nicholson, ; Reichow & Wolery, ; Tullis, Frampton, Delfs, & Shillingsburg, ; Vladescu & Kodak, ). Secondary targets have been presented during the antecedent (Vladescu & Kodak, ) or consequence portions of the trial (Delmolino et al, ), and may or may not have a relationship to the primary target (Gast et al, ).…”