“…Some investigators have studied social behaviors, e.g. avoidance of eye contact (Hutt & Ounsted, 1966), while others have studied children's performance on specific cognitive tasks and in specific situations (Clark & Rutter, 1977;Cowan, Hoddinott & Wright, 1965). Negativism has either been rather broadly or quite specifically defined (Morrison, Miller & Mejia, 1971;Sroufe, Stuecher & Stutzer, 1973) or studies have focused on the typology of behaviors exhibited by the child (Clark & Rutter, 1977;Sroufe ^/a/., 1973;Wallace, 1975).…”