“…In the past few years, theory-driven approaches also have been increasingly promoted in international development settings, including some of the evaluations commissioned and conducted by the Overseas Development Institute (ODI), the International Initiative for Impact Evaluation (3ie), the United Nations Evaluation Group (UNEG), and the Independent Evaluation Group (IEG) of the World Bank for evaluating humanitarian efforts (Carvalho & White, 2004;Conlin & Stirrat, 2008;White, 2007White, , 2009; White & Masset, 2007;World Bank, 2003. More recently, such approaches have been suggested as a means for evaluating military operations in the United States (Williams & Morris, 2009) as well as in a variety of other fields, settings, and contexts (Trochim, Marcus, Masse, Moser, & Weld, 2008;Urban & Trochim, 2009;Weiss, 1997b). Theorydriven forms of evaluation also have been recommended as one possible alternative to randomized controlled trials or randomized experiments-generally patterned after the evidence-based practice model in medicine-for both independent and federally sponsored initiatives charged with identifying efficacious or effective interventions (Government Accountability Office [GAO], 2009).…”