Vocabulary-use patterns in preschool children: Effects of context and time sampling

This investigation examined the effects of context and time sampling on the vocabulary-use patterns of nondisabled, preschool-aged children. Two groups of children participated in the study. Comparisons were sought for the vocabulary used by each group of five children at preschool and at home when samples in the two settings were collected on the same or different days. Communication samples representing 2.5 to 3.5 hours of continuous time were tape recorded with voice-activated tape recorders while the children engaged in routine activities at home and at preschool. Two thousand-word samples from each child were analyzed for lexical diversity, frequently occurring words, and the proportion of structure and content words used in each setting. Analyses suggested that the children in each group had similar vocabulary-use patterns at home and at preschool. For the total composite sample in each setting, however, approximately one third of the different words were produced only at home, one third only at pre...

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