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Wechsler Individual Achievement Test®-Third Edition
(WIAT®-III)

Overview: Updated achievement test for use in a variety of clinical, educational, and research settings.

Age Range: Individuals 4:0-50:11

Administration: Paper-and-pencil or online administration

Completion Time: Varies by grade level and number of subtests administered

Scores/Interpretation: Fall, Winter, and Spring grade-based standard scores, age-based standard scores, percentile ranks, stanines, NCEs, age and grade equivalents.

Scoring Options: Q-interactive web-based administration and Q-global™ web-based scoring

Publication Date: 2009

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