“…The best results were observed among completers, whereas treatment dropouts tended to perform as poorly as nontreated comparisons (Dynia & Sung, 2000;Eisenberg, 1999;Field, 1989;Peters & Murrin, 2000). The differences in postintervention recidivism risk between treated and nontreated offenders appeared to be negligible during the first 6 months but increased considerably thereafter to peak around the end of the first year and at the beginning of the second year (Banks & Gottfredson, 2004;Belenko et al, 2004). Actual prevalence levels of recidivism varied greatly across offender populations, across treatment modalities, and among different measures of recidivism, with 1-year rearrest rates ranging from b15% (Dynia & Sung, 2000) to N40% (Turley et al, 2004;Ventura & Lamber, 2004).…”