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We sought to determine the reliability and validity of the Brazilian Portuguese Version of the MacArthur-Bates Inventory of Communicative Development – Words and Sentences (BRCDI-W&S) (Teixeira, 2000) in a sample of 24-month-old children; and to provide normative data for Brazilian 24-month-olds. Participants were 61 typically developing 24-month-olds (30 girls) from varying SES backgrounds. The BRCDI-W&S was filled out by the child’s primary caregiver. Thirty-nine of the children also were administered the Cognitive and Language scales of the Brazilian Version of the Bayley Scales of Infant and Toddler Development-III. There was considerable variability among scores on the Vocabulary, Morphology, MLU, and Sentence Complexity sections of the BRCDI-W&S. Correlations among the scores on pairs of these sections ranged from .57 to .83 (all ps<.001). Individual differences in these indicators correlated more strongly with performance on the Bayley-III Language Scale (?s from .44 to .68) than on the Cognitive Scale (?s from .27 to .43), revealing acceptable levels of convergent validity and evidence of discriminant validity. Percentiles corresponding to scores on each of the sections of the BRCDI-W&S are reported.
Funding: FAPEMIG, Brazil. |
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