title: A long-term predictive validity study: can the CDI Short Form be used to predict language and early literacy skills four years later?
abstract: This longitudinal study examined the predictive validity of the MacArthur Communicative Developmental Inventories-Short Form (CDI-SF), a parent report questionnaire about children's language development (Fenson, Pethick, Renda, Cox, Dale & Reznick, 2000). Data were first gathered from parents on the CDI-SF vocabulary scores for seventy-six children (mean age=1 ; 10). Four years later (mean age=6 ; 1), children were assessed on language outcomes (expressive vocabulary, syntax, semantics and pragmatics) and code-related skills, including phonemic awareness, word recognition and decoding skills. Hierarchical regression analyses revealed that early expressive vocabulary accounted for 17% of the variance in picture vocabulary, 11% of the variance in syntax, and 7% of the variance in semantics, while not accounting for any variance in pragmatics in kindergarten. CDI-SF scores did not predict code-related skills in kindergarten. The importance of early vocabulary skills for later language development and CDI-SF as a valuable research tool are discussed.
authors: University of Washington, Institute for Learning and Brain Sciences, Portage Bay Building, Box 357988, Seattle, Washington 98195, United States. dilara@u.washington.edu
authors: Dilara Deniz
authors: DD
authors: Can
authors: Marika
authors: M
authors: Ginsburg-Block
authors: Roberta Michnick
authors: RM
authors: Golinkoff
authors: Kathryn
authors: K
authors: Hirsh-Pasek
mesh_terms: D000367:Age Factors; D002648:Child; D002663:Child Language; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007802:Language; D007807:Language Tests / Q000592:standards*; D008137:Longitudinal Studies; D008297:Male; D010700:Phonetics; D011237:Predictive Value of Tests; D012660:Semantics; D011795:Surveys and Questionnaires / Q000592:standards; D014825:Vocabulary