“…Observation has involved a variety of methods, induding time sampling (e.g., Greene et al, 1976;Montegar, Reid, Madsen, & Ewell, 1977), interval recording 119 1991124,119-127 NUMBER 1 (SPRING 199 1) (e.g., Katz, Johnson, & Gelfand, 1972), behavior inventories (e.g., Pomerleau, Bobgrove, & Smith, 1973), and outcome observations (e.g., . Other researchers have reduced the time required to conduct these observations by using staff self-reports (e.g., Santogrossi, O'Leary, Romanczyk, & Kaufman, 1973). Burg, Reid, and Lattimore (1979) used supervisors to observe independently the performance of staff members making self-reports.…”