The curvilinear effect of mothers' parenting stress and attunement on children's internalizing symptoms: A six wave study of mother-youth dyads across the transition to adolescence.

We aimed to test how deviations in a mother's own parenting stress (PS) levels across her child's transition to adolescence contribute to subsequent changes in her child's internalizing symptom levels. We tested both linear and curvilinear effects, as well as the extent to which a child's perception of his or her mother's attunement alters these links. We further explored whether overall maternal PS levels (relative to the other mothers) further moderate the within-dyad association. These effects were tested in a community sample consisting of 202 mother-child dyads during transition to early adolescence. The dyads were examined within and across six waves, each separated by 6 months. During each wave, the mothers (Mage at baseline = 40.1 years [SD = 6.1]) reported on their PS, while children (Mage at baseline = 10.1 years [SD = .90]) reported on their internalizing symptoms and their perceived maternal attunement. Multilevel within-dyad analyses revealed a U-shaped effect of mothers' PS on concurrent child symptoms, whereas the prospective association was not significant. Maternal attunement moderated the concurrent effects, changing the tipping point at which the concurrent potential benefits of rising PS were outweighed by the potential negative consequences of overburdening the child. Increases in PS prospectively predicted increased symptoms in the child but not when maternal attunement was above the mothers' average level. Global PS levels did not moderate these effects. The results underscore the contribution made by mothers' PS to the emotional trajectories of their children and show that these effects vary as a function of deviations in maternal attunement. (PsycInfo Database Record (c) 2020 APA, all rights reserved).