This meta‐analysis linked relative and absolute parental differential treatment (PDT) with internalizing and externalizing behavior of children and adolescents. Multilevel meta‐analysis data represented 26,451 participants based on 2890 effect sizes coming from 88 sources, nested within 43 samples. Participants were between 3.18 and 18.99 years of age (Mage = 12.64, SD = 3.89; 51.31% female; 82.23% White; 54.68% from the United States). Less‐favored treatment (relative PDT) was linked to more internalizing and externalizing behavior. Additionally, greater differences in parenting between siblings (absolute PDT) were linked to more internalizing and externalizing behavior. Some links were moderated by other factors. For example, some effects were stronger when PDT was reported by children, and others, when siblings were closer in age.

中文翻译：

---

父母对兄弟姐妹的差别对待与内化和外化行为有关：荟萃分析

这项荟萃分析将相对和绝对父母差别治疗（PDT）与儿童和青少年的内化和外化行为联系起来。多级荟萃分析数据代表了 26,451 名参与者，基于来自 88 个来源的 2890 个效应量，嵌套在 43 个样本中。参与者年龄在 3.18 至 18.99 岁之间（中号年龄= 12.64，标准差 = 3.89；51.31% 女性；82.23% 白色；54.68%来自美国）。不太受欢迎的治疗（相对 PDT）与更多的内化和外化行为有关。此外，兄弟姐妹之间养育方式的更大差异（绝对PDT）与更多的内化和外化行为有关。一些链接受到其他因素的调节。例如，当儿童报告 PDT 时，某些影响会更强，而当兄弟姐妹年龄更接近时，另一些影响会更强。