Abstract
The ages of attainment of expressive language milestones were elicited from parents of 96 middle class children at each well child visit from birth to 24 months. Mean frequency of milestone recall was 83%. Stanford Binet (SB) and Peabody Picture Vocabulary Tests (PPVT) were administered at 36 months of age: IQscores (mean ± SD) were 114 ± 11 and 112 ± 14, respectively. Pearson product-moment correlation coefficients between each milestone and test are noted in the Table.The ages of attainment of these milestones show a significant inverse correlation, p<.05, with three-year cognitive and language ability. Similar significant correlations were noted with the Vineland, Griffith and subtests of the McCarthy Scales. Sequential milestones of increasing vocabulary sizeand phrase complexity under two years can aid in early prediction of intellectual function.
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