Tests the hypothesis that mothers would label objects with adult-basic level terms when talking to other adults, but would label the same objects with child-basic terms when speaking to their young children who were just starting to talk, even though these labels may be very much "incorrect" by adult standards. (Author/RH)

Patterns of speech from lower socioeconomic status mothers to their infants were analyzed to determine correlations with infant risk of mental retardation. Measures of maternal language included sentence form, amount of speech, and syntactic complexity. The proportion of imperatives was positively correlated with risk status and negatively…