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How much overlap is there between the Preschool Language Scale—Fourth Edition and the Bayley–III Language Scale?Article ID: 2162
Last updated: 23 Nov, 2008
Frequently Asked Question:How much overlap is there between the Preschool Language Scale—Fourth Edition and the Bayley–III Language Scale?
Answer:There are only 44 items in the Bayley–III Language Scale that originated from the PLS-4. A validity study between the PLS–4 and the Bayley–III indicate no practice effects between the two tests, so administration of one test does not affect performance on the other test.
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