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

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 and External Validity
Correlates with:
WSIC-IV
KBIT
WAIT-II AND III
WASI-R
RAIS
Stanford Achievement Test
Internal Consistency coefficient typically
Subtest Consistency coefficient range from
Alternate-form coefficient range from

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: /
Gander Publishing Educational Materials (2014). Wide Range Achievement Test Fourth Edition (WRAT-4). Retrieved from
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
PAR (2012). Wide Range Achievement Test 4 (WRAT4). Retrieved from