Format

Send to

Choose Destination
Psychol Rep. 2015 Jun;116(3):674-84. doi: 10.2466/03.15.PR0.116k24w8. Epub 2015 Apr 14.

WIDE RANGE ACHIEVEMENT TEST IN AUTISM SPECTRUM DISORDER: TEST-RETEST STABILITY.

Author information

1
1 Texas State University.
2
2 Department of Psychology, Brigham Young University.
3
3 Department of Psychology, University of Utah.
4
4 Department of Pediatrics, School of Medicine, University of Utah, Waisman Laboratory for Brain Imaging and Behavior, University of Wisconsin-Madison.
5
5 Department of Psychiatry, School of Medicine, University of Utah.
6
6 Occupational Therapy Program, Department of Kinesiology, Waisman Laboratory for Brain Imaging and Behavior, University of Wisconsin-Madison.
7
7 Departments of Radiology and Bioengineering, University of Utah.
8
8 Department of Pediatrics and Neurology, School of Medicine, University of Utah.
9
9 Department of Medical Physics, Department of Psychiatry, Waisman Laboratory for Brain Imaging and Behavior, University of Wisconsin-Madison.
10
10 Departments of Psychiatry and Biostatistics, Harvard University, Neurostatistics Laboratory, McLean Hospital, Belmont, MA.
11
11 Department of Psychiatry, Waisman Laboratory for Brain Imaging and Behavior, University of Wisconsin-Madison.

Abstract

The principal goal of this descriptive study was to establish the test-retest stability of the Reading, Spelling, and Arithmetic subtest scores of the Wide Range Achievement Test (WRAT-3) across two administrations in individuals with autism spectrum disorder. Participants (N = 31) were males ages 6-22 years (M = 15.2, SD = 4.0) who were part of a larger ongoing longitudinal study of brain development in children and adults with autism spectrum disorder (N = 185). Test-retest stability for all three subtests remained consistent across administration periods (M = 31.8 mo., SD = 4.1). Age at time of administration, time between administrations, and test form did not significantly influence test-retest stability. Results indicated that for research involving individuals with autism spectrum disorder with a full scale intelligence quotient above 75, the WRAT-3 Spelling and Arithmetic subtests have acceptable test-retest stability over time and the Reading subtest has moderate test-retest stability over time.

PMID:
25871566
PMCID:
PMC4466043
DOI:
10.2466/03.15.PR0.116k24w8
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Atypon Icon for PubMed Central
Loading ...
Support Center