“…(p. 25) Numerous studies support this hypothesis (e.g., Conner & Easterling, 2009;Hawkins et al, 2009;Kania & Kramer, 2011;Hanleybrown, Kania & Kramer, 2012). However, an even larger body of work suggests that synergistic impact is more the exception than the norm (Kreuter & Lezin, 1998;Hallfors, Cho, Livert, & Kadushin, 2002;Brown & Fiester, 2007;Trent & Chavis, 2009;Kubisch, Auspos, Brown, & Dewar, 2010;FSG, 2011).…”