Parental phonological memory contributes to prediction of outcome of late talkers from 20 months to 4 years: a longitudinal study of precursors of specific language impairment.

By contrast, when children were categorized by late-talker status, ignoring FH+, the trend for an association with outcome fell short of significance (χ 2 = 2.72, d.f. = 1, P = 0.10).

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used a short Dutch version of the MacArthur Communicative Development Inventory (CDI), and found that, although there were highly significant correlations between expressive vocabulary at 18 months and 30 months, the sensitivity and specificity of late-talker status was very poor at predicting language status at 30 months, and inclusion of parental, perinatal, and demographic variables did not substantially improve prediction.

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