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The purpose of this study was to assess the degree to which behavioral intervention studies conducted with persons with mental retardation operationally defined the independent variables and evaluated and reported measures of treatment integrity. The study expands the previous work in this area reported by Gresham, Gansle, and Noell (1993) and Wheeler, Baggett, Fox, and Blevins (2006) by providing an evaluation of empirical investigations published in multiple journals in the fields of applied behavior analysis and mental retardation from 1996 –2006. Results of the review indicated that relatively few of the studies fully reported data on treatment integrity.

Investigated the psychometric properties of a structured interview for assessing leisure satisfaction in mentally retarded persons. The Ss were 40 persons (aged 21–66 yrs) with developmental disabilities and a contrast group of 20 college students. Between-item correlations suggested that the interview constituted a unitary scale. The internal-consistency reliability of a scale made of all 33 items was .73. Interrater reliability was 97.35%. Items that did not correlate with the total scale tended to be those associated with general leisure satisfaction, whereas items referring to specific activities tended to correlate with the total scale. Items reflecting specific pursuits made up the …