“…Second, training must be highly concrete, incorporate simple guidelines, and promote generalisation (Bakken, Miltenberger, & Schauss, 1993;Fantuzzo, Wray, Hall, Goins, & Azar, 1986;Feldman, 1986;Feldman et al, 1986;Feldman et al, 1989). Third, staff must be well trained (Espe-Sherwindt & Kerlin, 1990;Lynch & Bakley, 1989). Fourth, interventions need to be initially intensive and then periodic over the long term (Feldman et al, 1989;Tymchuk, 1990).…”