“…The sensitivity to change of the Y-OQ with regard to each of these procedures has been reported elsewhere (Burlingame et al, 2001a;Mosier, Burlingame, Nebeker, & Wells, 1997), as was research related to determining sensitivity to change across individual clients or groups of clients undergoing mental health treatment and self-report and/or clinician-reported sources of outcome data (e.g. Earnshaw, Rees, Dunn, Burlingame, & Chen, 2005;Lambert, 2001;Lambert et al, 2001). 2 Two instruments commonly used in tracking outcome with youth are the Child Behavior Checklist (CBCL; Achenbach, 1991) and Conners' Parent Rating Scale-Revised (CPRS-R; Conners, 1997) (Brown et al, 2001) led to the need for additional research to satisfy remaining criteria (see, e.g.…”