Index of Productive Syntax
- 1 March 1990
- journal article
- research article
- Published by Cambridge University Press (CUP) in Applied Psycholinguistics
- Vol. 11 (1), 1-22
- https://doi.org/10.1017/s0142716400008262
Abstract
A new method for evaluating the grammatical complexity of preschool natural language corpora is introduced. In the Index of Productive Syntax, occurrences of 56 syntactic and morphological forms are counted, yielding a total score and subscores for noun phrases, verb phrases, questions/negations, and sentence structures. Development of the index and analyses of its reliability and age-sensitivity when applied to language samples of 2- to 4-year-olds are described. Some advantages and limitations of the index as a research and clinical instrument are also discussed.Keywords
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