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Northwestern Syntax Screening Test: a short form
The Journal of Speech and Hearing Disorders
|May 1, 1980
Summary
A new, shorter version of the Northwestern Syntax Screening Test (NSST) was developed, reducing administration time by nearly half. This efficient tool maintains diagnostic accuracy, ensuring comparable clinical decisions for language development assessment in young children.
Area of Science:
- Developmental Psychology
- Speech-Language Pathology
- Educational Psychology
Background:
- The original Northwestern Syntax Screening Test (NSST) is a valuable tool for assessing receptive and expressive language skills in children.
- However, the lengthy administration time of the original NSST can be a barrier in clinical and educational settings.
- There is a need for a more time-efficient yet equally accurate language assessment tool for early childhood.
Purpose of the Study:
- To develop and validate a shortened version of the NSST (NSST-S).
- To reduce the number of test items while preserving the majority of the original test's score variance.
- To establish normative data for the NSST-S at finer age intervals and confirm its clinical utility.
Main Methods:
- A step-wise multiple regression model was employed to identify the most salient items from the original 20-item NSST.
- The shortened 11-item NSST was administered to a large sample of 900 children aged 3 to 7 years, 11 months.
- A cross-validation sample of 301 children was used to compare the clinical decisions made using the original and shortened forms.
Main Results:
- The shortened NSST (NSST-S) consists of 11 items (receptive and expressive), accounting for 95% of the total test score variance.
- The NSST-S requires approximately 10 minutes for administration, significantly reducing assessment time.
- Normative data for the NSST-S were established in six-month intervals, offering more precise age-based comparisons than the original one-year intervals.
Conclusions:
- The shortened NSST (NSST-S) is a valid and reliable measure for assessing receptive and expressive language skills in young children.
- The NSST-S provides comparable clinical decisions to the original NSST, making it a practical alternative for efficient language screening.
- This optimized assessment tool supports timely identification of language development needs in preschool and early school-aged children.