“…Observation procedures in playroom settings are reported in the literature (Barkley, 1977;Barkley & Jackson, 1977;Cunningham & Barkley, 1978;Ellis, Witt, Reynolds, & Sprague, 1974;Hutt, Hutt, & Ounsted, 1965;Kalverboer, 1975;Roberts, Ray, & Roberts, 1984;Routh & Schroeder, 1976;Routh et al, 1974;Touwen & Kalverboer, 1973;Ullman, Barkley, & Brown, 1978;Willoughby, 1980). However, these systems are generally too complicated and impractical for routine clinical use.…”