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How grammatical are 3-year-olds? | LitMetric
Purpose : This study investigated the level of grammatical accuracy in typically developing 3-year-olds and the types of errors they produce.Method : Twenty-two 3-year-olds participated in a picture description task. The percentage of grammatical utterances was computed and error types were analyzed.Results : The mean level of grammatical accuracy in typical 3-year-olds was ∼71%, with a wide range of variability. The current study revealed a variety of error types produced by 3-year-olds, most of which were produced by fewer than 5 children. The pattern observed for most of the children was to produce a scattering of errors with no more than a few of any 1 error type.Conclusion : The level of grammatical accuracy in 3-year-olds was skewed toward the high end. Although tense marking errors were the most frequent error type, they accounted for only 1/3 of the errors produced by 3-year-olds. A more general measure of grammaticality that considers additional aspects of language might, therefore, be useful in assessing language at this age.
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