“…First, although the life-course perspective implies that time-varying social forces affect temporal change in criminal offending, extant studies that consider the interaction between antisocial propensity and social variables typically Seq: 4 14-MAY-07 15:40 316 OUSEY AND WILCOX have not directly measured within-individual, over-time change in theorized explanatory and/or outcome variables (Agnew et al, 2002;Nagin and Paternoster, 1994;Peter, LaGrange, and Silverman, 2003;Wright et al, 2001Wright et al, , 2004; but see Piquero et al, 2002). Second, findings from past studies have been somewhat inconsistent with regard to both the existence and the direction (i.e., positive or negative) of hypothesized propensity-by-social variable interaction effects (Agnew et al, 2002;Burton et al, 1998;Grasmick et al, 1993;Li, 2004;Nagin and Paternoster, 1994;Peter, LaGrange, and Silverman, 2003;Tittle and Botchkovar, 2005;Wright et al, 2001Wright et al, , 2004. Finally, compounding the above issues, recent scholarship raises the possibility that some interaction effects observed in past studies may be "spurious" artifacts that result from the use of statistical models that poorly match the typically skewed, left-censored distributions of summative indices of delinquent behavior (Osgood, Finken, and McMorris, 2002).…”