“…Although IVE has become central to econometrics, IVE has not received much attention in social work research (for exceptions, see Bennett, Stoops, Call, & Flett, 2007;Berger, Paxson, & Waldfogel, 2009;Heintze, Berger, Naidich, & Meyers, 2006;Svare, Jay, Bruce, Freisthler, & Miller, 2007). The intuition behind IVE is that correlative analyses can be used in conjunction with another variablereferred to as an instrument, or instrumental variable (usually abbreviated as IV)-to artificially create the same conditions as random assignment and isolate the causal effect of X on Y (Morgan & Winship, 2007).…”