Research supports PCIT as an effective treatment for younger youth with externalizing and internalizing problems. Yet, support for PCIT for children in middle childhood, remains limited. Recently, an adapted protocol for Middle Childhood (PCIT-MC) was created and a recent pilot trial (n = 11) found significant pre- to post-treatment improvements in child disruptive behavior, but no study has examined PCIT-MC’s impact on internalizing problems. Thus, the proposed study, using this pilot trial data, examined the efficacy of PCIT-MC to reduce internalizing problems (per caregiver-report) from pre- to post-treatment, and the degree to which these reductions (along with youth-report of 3 children with depressive symptoms) were clinically significant and reliable. Youth had large statistically significant pre- to post-treatment reductions in externalizing (g = -1.54) and internalizing symptoms (g = -1.14), that were typically clinically significant and reliable across cases and reporters. |