Transactional processes between parental support and adolescents’ depressive symptoms might differ in the short term versus long term. Therefore, this multi-sample study tested bidirectional within-family associations between perceived parental support and depressive symptoms in adolescents with datasets with varying measurement intervals: Daily (N = 244, Mage = 13.8 years, 38% male), bi-weekly (N = 256, Mage = 14.4 years, 29% male), three-monthly (N = 245, Mage = 13.9 years, 38% male), annual (N = 1,664, Mage = 11.1 years, 51% male), and biennial (N = 502, Mage = 13.8 years, 48% male). Preregistered random-intercept cross-lagged panel models (RI-CLPMs) showed negative between- and within-family correlations. Moreover, although the preregistered models showed no within-family lagged effect from perceived parental support to adolescent depressive symptoms at any timescale, an exploratory model demonstrated a negative lagged effect at a biennial timescale with the annual dataset. Concerning the reverse within-family lagged effect, increases in adolescent depressive symptoms predicted decreases in perceived parental support 2 weeks and 3 months later (relationship erosion effect). Most cross-lagged effects were not moderated by adolescent sex or neuroticism trait level. Thus, the findings mostly support adolescent-driven effects at understudied timescales and illustrate that within-family lagged effects do not generalize across timescales.

父母支持与青少年抑郁症状之间的交互过程在短期和长期可能会有所不同。因此，这项多样本研究使用不同测量间隔的数据集测试了青少年感知的父母支持与抑郁症状之间的双向家庭内关联：每日（N = 244，M年龄= 13.8 岁，38% 男性），每两周（N = 256，M年龄= 14.4 岁，29% 男性），三个月一次（N = 245，M年龄= 13.9 岁，38% 男性），每年一次（N = 1,664，M年龄= 11.1 岁，51% 男性） ，每两年一次（N = 502，M年龄= 13.8 岁，48% 男性）。预先注册的随机截取交叉滞后面板模型（RI-CLPM）显示出家庭间和家庭内的负相关性。此外，尽管预先注册的模型显示在任何时间尺度上感知到的父母支持对青少年抑郁症状都没有家庭内滞后效应，但探索性模型在两年一次的时间尺度上与年度数据集表现出负滞后效应。关于反向家庭内滞后效应，青少年抑郁症状的增加预示着两周和三个月后感知到的父母支持的减少（关系侵蚀效应）。大多数交叉滞后效应不受青少年性别或神经质特质水平的调节。因此，研究结果主要支持在未充分研究的时间尺度上青少年驱动的效应，并表明家庭内的滞后效应不会在整个时间尺度上普遍存在。