“…Second, a handsearch was conducted of 11 major journals (i.e., Exceptional Children, Journal of Early Intervention, Topics in Early Childhood Special Education, American Journal of Mental Retardation, Behavior Modification, Journal of Clinical Child Psychology, Volta Review, Development and Psychopathology, Education and Training of the Mentally Retarded, Pointer, Journal of Experimental Child Psychology) for the years 1997 through June 1999. Third, reference sections from 33 relevant literature reviews were examined to identify additional studies that were not captured through computer searches (e.g., Ichinose & Clark, 1990;Malone & Stoneman, 1995;Rettig, 1994).…”