Part correlations were compared as a second test of specificity of the hypothesized predictors (Lee and Preacher 2013). Analyses confirmed findings from the linear regression analyses, demonstrating that the part correlation between primary control coping (z = −2.37; p <.01) and youth depressive symptoms was significantly stronger than the part correlation between primary control coping and youth anxiety symptoms. However, Fishers z test indicates that the part correlation between total stress associated with parental depression and youth depressive symptoms was not significantly different than total stress and anxiety symptoms (z = 0.94; p = .16). Additionally, the part correlation between youth secondary control coping (z = −0.85; p = .20) and youth depressive and anxiety symptoms was not significantly different, confirming findings from the regression analyses.
