WPPSI-IV的认知结构：网络分析可以告诉我们什么？

The Wechsler Preschool and Primary Scale of Intelligence, Fourth Edition (WPPSI-IV), is widely used to assess young children’s cognitive abilities. Its indices describe performance in domains such as verbal comprehension and working memory, but evidence for interpreting these as distinct abilities remains limited. This study examined whether exploratory graph analysis (EGA), a network method, could recover the proposed index groupings from published normative correlations for ages 2:6 to 3:11 (n = 600) and 4:0 to 7:7 (n = 1,100). Simulations tested whether the same method could recover those g