Construct validity of the comprehensive developmental inventory for infants and toddlers

Ai Wen Hwang, Li Jen Weng, Hua Fang Liao*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

17 Scopus citations


Background: The aim of this study was to investigate the construct validity of the diagnostic test, the Comprehensive Developmental Inventory for Infants and Toddlers (CDIIT). Methods: A total of 1085 children in four age groups (infant, 1-year-old, 2-year-old, preschool age) were enrolled. The Developmental Quotient of each subdomain of the five CDIIT subtests (Cognition, Language, Motor, Social, and Self-help) was used as the basic unit for factor analysis with the iterative principle factor method and promax rotation. Results: The two-factor solution in two younger age groups and 2- or 3-factor solutions in the 2-year-old and preschool groups provided superior factor structure in terms of interpretability and compatibility with existing child development theories. Conclusion: Although five constructs were proposed in the original manual of CDIIT, two to three constructs were revealed in this empirical study.

Original languageEnglish
Pages (from-to)598-606
Number of pages9
JournalPediatrics International
Issue number4
StatePublished - 08 2010
Externally publishedYes


  • child development
  • diagnostic test
  • factor analysis
  • psychometrics


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