“…In a number of research reports (Berkowitz & Craziano, 1972;Johnson & Katz, 1973;Moreland, Schwebel, Beck & Wells, 1982), investigators have concluded that parent training is an effective treatment for such children. However, more recently research which has investigated the long-term effects of these programs has indicated that training parents is not always effective and does not guarantee lasting measurable effects for all parents (Forehand, Sturgis, McMahon, Aguar, Creen, Wells & Breiner, 1979;Johnson & Christensen, 1975;Patterson, 1974;Wahler, 1980). Some investigators have begun to examine why parent training programs work for some families and not for others.…”