“…Although treatments informed by the IISCA have been replicated and validated in similar studies (Ghaemmaghami, Hanley, & Jessel, ; Ghaemmaghami, Hanley, Jin, & Vanselow, ; Jessel, Ingvarsson, Metras, Whipple, Kirk, & Solsbery, ; Jessel, Ingvarsson, Kirk, Whipple, & Metras, ; Santiago, Hanley, Moore, & Jin, ), across multiple research groups (Chusid & Beaulieu, in press; Herman, Healy, & Lydon, ; Strand & Eldevik, ), and large‐scale consecutive controlled case studies (Jessel, Ingvarsson, Kirk, et al, ; Slaton, Hanley, & Raftery, ), the single‐session IISCA has only been suggested as a possible option during the reanalysis of the full IISCA format (Jessel et al, ). We conducted this study to determine if the single session IISCA could inform the effective function‐based treatment of three children who exhibit severe problem behavior.…”