“…Simulation studies (n = 21), were almost exclusively experimental, generally employing random allocation of subjects to groups. Some of these studies used blocking variables to allocate subjects to groups (e.g., Newman, Brown, Rivers, & Glock 1983); some used repeated measures designs (e.g., Study samples varied considerably in size (from 1 to 4,500; Mdn = 60) and in the unit of analysis (generally the individual respondent, but sometimes the evaluation project per se -Brickell, 1976;Carter, 1971;Leviton & Boruch, 1983;Rossman, Hober, & Ciarlo, 1979;Van de Vail & Bolas, 1982; or sometimes the domain of the evaluation- Alkin, Kosecoff, Fitz-Gibbon, & Seligman, 1974;Bigelow& Ciarlo, 1976;David, 1978;Kennedy, 1983Kennedy, , 1984Tash&Stahler, 1982;Williams & Bank, 1984). Education respondents were typically teachers, principals, board members, and/or school system or district office administrators.…”