Diagnostic Evaluation of Language Variance (DELV)–Norm Referenced

Author(s):Harry N. Seymour, Thomas W. Roeper, and Jill de Villiers, with contributions by Peter A. de Villiers
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Age Range:4–9 years
Administration Time:45–50 minutes
Computerized Scoring:No
Description:Used to diagnose a child's speech and language disorders accurately. DELV–Norm Referenced contains items specifically designed to neutralize the effects that variations from Mainstream American English (MAE) may have on a child's test performance and to assess a child's true language abilities. Normative samples include the general U.S. population and are demographically adjusted.

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