Longitudinal associations between maternal depression, problematic media use, and parenting efficacy as a time-varying mediator. - Holmgren HG; Densley RL; Coyne SM; Porter CL; Jones BL; Sheffield J; Harker T; Weston-Greenburg AE; Shawcroft J; Stockdale L (Journal of family psychology : JFP : journal of the Division of Family Psychology of the American Psychological Association (Division 43), 2026)