Production and Maternal Report of 16- and 18-Month-Olds' Vocabulary in Low- and Middle-Income Families
Children's vocabularies on the MacArthur Communicative Development Inventories Words and Gestures form (CDI:WG; Fenson et al., 1993) with spontaneous production data in both low- and middle-income families. Method: As part of a longitudinal investigation, language samples were gathered from 23 mother-child dyads based on Stoel-Gammon's (1987) protocol for the Language Production Scale when the children were 16 and 18 months of age. The mothers also completed the CDI:WG at both visits. The words that the children produced were compared with those the mothers reported on the vocabulary checklist, with family income and vocabulary size as grouping factors. Results: Maternal reporting did not differ as a function of socioeconomic status but did increase from 16 to 18 months. Conclusions: The vocabulary differences observed on the CDI:WG for children from lowincome families do not appear to be a reflection of inaccurate maternal reporting. Further research is needed to determine whether these findings will generalize more broadly. © American Speech-Language-Hearing Association.
Furey, Joan E., "Production and Maternal Report of 16- and 18-Month-Olds' Vocabulary in Low- and Middle-Income Families" (2011). American Journal of Speech-Language Pathology, (1), 38-46. 10.1044/1058-0360(2010/09-0073). Retrieved from http://openworks.wooster.edu/facpub/185
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