“…Consequently, the pretest-posttest design has become one "of the most common techniques to measure change" in social science research (Allen & Nimon, 2007, p. 28). It has been used by researchers to accumulate evidence of the efficacy of various practice interventions (Brooks, Nackerud, & Risler, 2001;Campbell, 1995;Capp, Thyer, & Bordnick, 1997;Loughead & Shu-Hui, 1995;Matsuba, Elder, Petrucci, & Marleau, 2008) and of social work education (Gasket & Vafeas, 2003;Weaver & Nackerud, 2005). The widespread use of the pretest-posttest design prompted Capp et al (1997) to opine that structuring studies with this approach "is a useful form of social work intervention research" (p. 65).…”