“…The better-controlled investigations in the 1974-1978 literature used single-subject designs (Champlin & Karoly, 1975;Miller & Sloane, 1974;Nelson, Hay, & Hay, 1977;Robin, Martello, Foxx, & Archable, 1977), "attention placebo" controls (Allen & Desaulniers, 1974;Denney & Rupert, 1977;Fremouw & Feindler, 1978;Groveman, Richards, & Caple, 1977;Ziesat, Rosenthal, & White, 1978), and a combination of minimal treatment or comparison treatment plus no-treatment controls (Greiner & Karoly, 1976;Home & Matson, 1977;Lent & Russell, 1978;Melnick & Russell, 1976;Mitchell et al, 1975aMitchell et al, , 1975bRichards, 1975;Richards, McReynolds, Holt, & Sexton, 1976;Richards & Perri, 1978;Richards, Perri, & Gortney, 1976;Tichenor, 1977). Analysis of the outcomes obtained in these studies strongly supports one of the earlier conclusions reached based on a box-score tabulation (Table 2).…”