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Wechsler Individual Achievement Test - 3rd Edition

WIAT-III

By: Ashley DiCola

Purpose of the WIAT-III

Description of the WIAT-III

Structure of the WIAT-III

  • Identify academic strengths and weaknesses
  • Identify specific learning disabilities
  • Identify grade level equivalents
  • Identify student growth
  • Aid in intervention planning
  • Aid in IEP Planning

WIAT-III

Norm-Referenced

  • The WIATT-III uses a grade based start point
  • Test must be discontinued after 4 consecutive "0"s.
  • The test is broken down into four sections
  • Oral Language
  • Reading
  • Written Expression
  • Math
  • The WIAT-III was created by David Wechsler and was published by Pearson in 2009.
  • The WIAT-III is an academic achievement test that can be used in the following settings:
  • Educational
  • Clinical
  • Research
  • Grade Levels the WIAT-III assesses:
  • K-12
  • It is both diagnostic and norm-referenced.
  • It includes 16 subtests
  • Standardized on a national sample
  • 2,775 students
  • Male and Female
  • Various ages, races, ethnic backgrounds, parent education levels, and geographic areas

Math

Reference: (Salvia, Ysseldyke, & Bolt, 2013)

  • Math Problem Solving
  • Numerical Operations
  • Math Fluency -Addition
  • Math Fluency - Subtraction
  • Math Fluency - Multiplication

Reading

WIAT-III and Learning Disabilities

  • Early Reading Skills
  • Word Reading
  • Pseudoword Decoding
  • Reading Comprehension
  • Oral Reading Fluency

Oral Language

Administration

What Does the WIAT-II Look Like?

  • Listening Comprehension
  • Oral Expression
  • Pre-Kindergarten & Kindergarten
  • Approximately 45 - 50 mins

  • Grades 1-6
  • Approximately 1.5 hours

  • Grades 7-12
  • Approximately 1.5 hours - 2 hours
  • WIAT-III can be used to help identify learning disabilities that are recognized under the Individuals wit Disabilities Education Improvement Act of 2004 (IDEA).

Achievement Areas Tested by the WIAT-III

Reference: (Salvia, Ysseldyke, & Bolt, 2013)

Written Expression

Reference: (Salvia, Ysseldyke, & Bolt, 2013)

  • Basic reading skills
  • Reading Fluency
  • Reading Comprehension
  • Written Expression
  • Oral Expression
  • Listening Comprehension
  • Mathematical Calculation
  • Mathematics Problem Solving
  • Alphabet Writing Fluency
  • Spelling
  • Sentence Composition
  • Essay Composition

Image Reference: Pearson

http://www.pearsonclinical.com/psychology/products/100000463/wechsler-individual-achievement-testthird-edition-wiatiii-wiat-iii.html

Reference:

Pearson

Reference: (Salvia, Ysseldyke, & Bolt, 2013)

Scoring of the WIAT-III

Recommendations for the WIAT-III

Demonstration of the WIAT-III

Critique of the WIAT-III

  • In my opinion, the WIAT-III is a very useful and effective tool.
  • Recommendations for the WIAT-III administrator.
  • Give the student breaks if needed
  • Do not feel obligated to finish the entire exam in one day
  • The WIAT-III is a time consuming test
  • It takes away critical class time for the student
  • It takes away critical time from the teacher or school psychologist.
  • 1-1 administration can cause testing anxiety
  • It can be overwhelming for the student
  • Throughout the exam the administrator records the students responses in the Response Booklet.
  • These are the raw scores
  • Most of the test items are scored using 1 and 0.
  • 1 indicates a correct answer and 0 indicates an incorrect answer
  • Writing portions of the exam are scored using a specific rubric.
  • The WIAT-III comes with a scoring assistant CD
  • The teacher or psychologist who administered the exam enters the raw scores into the scoring assistant program.
  • Once the scores are entered, all of the calculations, composite scores, and graphs are calculated automatically.

Types of Scores for the WIAT-III

References

  • Standard Scores
  • Percentile Ranks
  • Normal Curve Equivalents
  • Age Equivalents
  • Growth Scale Value Scores

Reference: (Salvia, Ysseldyke, & Bolt, 2013)

Salvia, J., Ysseldyke, J., & Bolt, S. (2013). Assessment in

special and inclusive education (12th ed.). Belmont, CA: Wadsworth, Cengage Learning.

Reference: WIAT Video by Jane Beving

Maccow, G. (2011, January 1). WIATT-III

Administration and Scoring Handout. Retrieved from http://images.pearsonassessments.com/Images/PDF/Webinar/WIAT-III_Administration_and_Scoring_Handout_September_2011.pdf

WIAT Video Beving [Motion picture]. (2014). YouTube.

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