“…As specified in Figure 1, these include characteristics of (1) the organizational context in which the curriculum is implemented; (2) the implementation system, including training in the curriculum; (3) implementers of the program or curriculum; and (4) audiences targeted. School context and other organizational characteristics that have been linked to fidelity include school size and climate, 37 teacher morale, organizational support, 7,12,[38][39][40] and parental support, 41 as well as constraints in time and resources. 41,42 With regard to the implementation system, a number of studies and reviews, 12,37,43,44 as well as guides to effective school-based drug prevention curricula, 3,6 strongly emphasize the importance of training for effective implementation.…”