Wide Range Achievement Test 4 (WRAT 4) - PowerPoint PPT Presentation

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Wide Range Achievement Test 4 (WRAT 4)

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  1. Wide Range Achievement Test 4 (WRAT 4) Rebecca Gowen

  2. History • Joseph F. Jastak • First published in 1946 • WRAT 4 published in 2006 • Developed to complement measure developed by David Wechsler • Revisions • WRAT-R (1978) • WRAT-III (1993)

  3. Purpose • It is designed to measure basic academic skills involving reading, spelling, and math computation. • Word Reading • Measures letter and word recognition • Sentence Comprehension – • New to the WRAT 4 • Measures an individual’s ability to gain meaning and comprehend information contained in a sentence • Added to address validity • Spelling • Measures one’s ability to encode sounds into the written form • Math Computation • Measures one’s ability to perform basic mathematical computations

  4. Administration Format Time Depends upon age, skill, and response. Age: 5-7 years old Approximately 15-25 minutes Age: 8 years and older Approximately 35-45 minutes • Recommended administration – Word Reading, Sentence Comprehension, Spelling, then Math Computation. • Level B Qualification • Blue and Green forms

  5. Scoring Raw Scores obtained and converted into standard scores Mean of 100 and Standard Deviation of 15 Other scores obtained Percentile Rank Confidence Interval of 95 percent Grade Equivalence Normative Curve Equivalence Stanine

  6. Testworthiness Validity Reliability Internal Consistency coefficient typically .92 - .98 Subtest Consistency coefficient range from .87 - .93 Alternate-form coefficient range from .82 - .90 • Internal and External Validity • Correlates with: • WSIC-IV • KBIT • WAIT-II AND III • WASI-R • RAIS • Stanford Achievement Test

  7. Sample • 3,000 individuals • Based on age, gender, ethnicity, SES, and geographical region. • Multi-cultural considerations include: • African-American • Hispanic (Latino & Spanish) • Asian • American Indian • Hawaiian/Pacific Islander • Caucasian

  8. Strengths • Initially can assess for educational and vocational factors • Assess an individual’s academic progress • Scoring is concise • Strong reliability and validity • Time efficient (Individual and Small group)

  9. Weaknesses • Validity remains questionable • Does not identify behavioral difficulties • Does not accurately assess for learning disabilities, visual and/or auditable concerns, and special educational needs.

  10. Any Questions??

  11. References • Dell, C. A., Harrold, B., & Dell, T. (2008). Test Review: Wide Range Achievement Test- Fourth Edition. Rehabilitation Counseling Bulletin. doi: 10.1177/0034355208320079 • Gander Publishing Educational Materials (2014). Wide Range Achievement Test Fourth Edition (WRAT-4). Retrieved from http://www.ganderpublishing.com/Wide-Range-Achievement-Test-Fourth-Edition-WRAT-4.html • Makray, C., & Hope, G (2006). Wide Range Achievement Test 4 (WRAT 4). Journal of Occupational Psychology, Employment and Disability, 11(1). • Neukrug, E., & Fawvett R (2006). Essentials of testing and assessment: A practical guide for counselors, social workers, and psychologists. Belmont, CA: Brooks/Cole. pgs. 166-167 • PAR (2012). Wide Range Achievement Test 4 (WRAT4). Retrieved from http://www4.parinc.com/Products/Product.aspx?ProductID=WRAT4