“…Observation of the dependent variable alone will allow unambiguous conclusions about changes in the target behavior, but it will not allow conclusions about the source of those changes (Billingsley, White, & Munson, 1980 (Milby, 1970;Reisinger, 1972;and Kazdin, 1973, respectively), but no such rigor is applied to the same behaviors when they appear as antecedents or consequences to the target behavior, as independent variables (Strain, Shores, & Timm, 1977;Dorsey, Iwata, Ong, & McSween, 1980;and Hasazi & Hasazi, 1972, respectively Romanczyk et al, 1973). Finally, Hersen (1981) (Reid, 1970 Stallings, 1975), noted that many of Stallings' findings would be uninterpretable without the examination of the actual (not the planned) application of the independent variable. There are many other related research areas in which investigators have urged the definition and assessment of the independent variable, including a review of interventions on children's problem solving (Urbain & Kendall, 1980) and children's psychotherapy (Hartmann, Roper, & Gelfand, 1977), behavior therapy with psychotic adults (Paul & Lentz, 1977), pharmacotherapy (Becker & Schuckit, 1978) and psychotherapy with depressed adults (Rounsaville, Weissman, & Prusoff, 1981).…”