“…A growing number of prevention programs, particularly in the substance abuse literature, monitored implementation extensively and have shown that variability in the quality of implementation is related to program outcomes (Basch, 1984;Blakely et al, 1987;Botvin, Baker, Dusenbury, Botvin, & Diaz, 1995;Connell, Turner, & Mason, 1985;Hansen, Graham, Wolkenstein, & Lundy, 1989;Gottfredson, Gottfredson, & Hybl, 1993;Rohrbach, Graham, & Hansen, 1993;Ross, Luepker, Nelson, Saavedra, & Hubbard , 1991;Sobol et al, 1989;Taggart, Bush, Zuckerman, & Theiss, 1990;Tricker & Davis, 1988).…”