“…Indeed, only a small number of experiments have sought to examine the aggression-inhibiting influence of threatened punishment, and even the fmdings of these studies have been somewhat inconclusive. Thus, while several recent investigations have reported that threatened punishment is indeed effective in inhibiting human aggression (e.g., Baron, 1971;Shortell , Epstein , & Taylor, 1970), other experiments have failed to substantiate the occurrence of such effects (Baron, 1973;Knott & Drost, 1972) . The inconsistent findings of these studies, coupled with the informal observation that threatened punishment sometimes succeeds, and sometimes fails in inhibiting overt aggression in various situations outside the laboratory, suggest very strongly that the influence of this variable is mediated by several additional factors .…”