Purpose: The Index of Productive Syntax (IPSyn; Scarborough, 1990) is widely used to measure syntax production in young children. The goal of this article is to promote greater clarity and consistency in machine and hand scoring by presenting a revised version of the IPSyn (IPSyn-R) and comparing it with the original IPSyn (IPSyn-O).
Method: Longitudinal syntax production in 10 30- and 42-month-old typically developing children drawn from the Child Language Data Exchange System (MacWhinney, 2000) Weismer corpus was examined, using both the IPSyn-O and the IPSyn-R.
Results: The IPSyn-R provided nearly identical scores to the IPSyn-O with the exception of scores affected primarily by 1 modified noun phrase structure. Structures ranked as more advanced were produced less frequently. The results also reveal which of the IPSyn-R's 59 structures were most and least likely to be produced by this sample at these ages.
Conclusions: The qualitative and quantitative differences between the IPSyn-O and the IPSyn-R are relatively minor. The IPSyn-R can make it easier to score the IPSyn, both by clinicians and researchers, and facilitate the IPSyn's move to machine scoring of language samples.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6430505 | PMC |
| http://dx.doi.org/10.1044/2018_LSHSS-17-0092 | DOI Listing |
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