“…Of particular note has been the study of children's mood states and their effects on various patterns of social behavior. Experimental procedures to induce affective states have been shown to be valid, and children's moods have been demonstrated to influence their social behavior with other children (Barden, Garber, Duncan, & Masters, 1981;Harris & Siebel, 1975;Rosenhan, Underwood, & Moore, 1974;. The publication of both convergent and discriminant validity data on the induction procedure (Masters, Barden, & Ford, 1979;Teasdale & Taylor, 1981) has encouraged the utilization of experimentally induced affective states to explore the influence of emotion on learning (Masters et al, 1979) and other cognitive processes under carefully controlled experimental conditions.…”