An investigation into differences in early childhood development
Variability in Early Communicative Development demonstrates that the "modal child" does not, in fact, exist. Interviews with parents of over 1,800 children reveals both typical and exceptional communication development between the ages of eight and 30 months, providing unusually specific detail on the variability of individual lexical, gestural, and grammatical skills. Discussion of the Macarthur Communicative Development Inventories delves into the inventory's reliability, validity, and interrelations, before moving into an examination of the stability of differences and individual contributing factors.
II: History and Development
III: The Macarthur Communicative Development Inventories and Methods of the Normative Study
IV: Reliability and Validity of the CDI Inventories
V: Developmental Trends and Variability in the Acquisition of Communicative Skills
VI: Interrelations Among the Major Components of the CDI
VII: The Contribution of Gender, Social Class, and Birth Order to Variation in Early Language and Communication
VIII: Stability of Individual Differences
IX: Individual Item Analyses
Appendix A: The CDI Infant and Toddler Forms
The Instrument is Great, But Measuring Comprehension is Still a Problem
Michael Tomasello, Carolyn B. Mervis.
On the Nature of Informant Judgments in Inventory Measures: . . . and So What is it You Want to Know?
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