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The reliability of performance of healthy adults on three visual perception tests

Brown, Ted, Mullins, Erin and Stagnitti, Karen 2008, The reliability of performance of healthy adults on three visual perception tests, British journal of occupational therapy, vol. 71, no. 10, pp. 438-447.


Title The reliability of performance of healthy adults on three visual perception tests
Author(s) Brown, Ted
Mullins, Erin
Stagnitti, Karen
Journal name British journal of occupational therapy
Volume number 71
Issue number 10
Start page 438
End page 447
Publisher College of Occupational Therapists
Place of publication London, U.K.
Publication date 2008-10
ISSN 0308-0226
Keyword(s) visual perception
test-retest reliability
internal consistency
occupational therapy
assessment
Summary Problems with visual perceptual skills have been shown to have a negative impact on the daily living skills of individuals and are, therefore, commonly assessed by occupational therapists. The purpose of this study was to examine two types of reliability (internal consistency and test-retest reliability) of three newly revised or developed adult visual perception tests. The participants were 50 healthy adults, aged 18 to 55 years, from Melbourne, Victoria, Australia. The participants completed the Developmental Test of Visual Perception - Adolescent and Adult (DTVP-A), the Motor-Free Visual Perception Test - Third Edition (MVPT-3) and the Test of Visual Perceptual Skills (non-motor) - Third Edition (TVPS-3). Internal consistency was examined using Cronbach's alpha calculations and test-retest reliability was analysed using Spearman rho non-parametric correlation coefficients.

The results indicated that the DTVP-A, the MVPT-3 and the TVPS-3 had total scale internal consistency correlation scores of 0.60 or higher (0.60, 0.69 and 0.63 respectively). The majority of the subscales of each test had lower correlation coefficients than the overall scores (ranging from 0.22 to 0.49). For the DTVP-A, MVPT-3 and TVPS-3 total scale scores, the test-retest reliability correlation coefficients were statistically significant (rho = 0.46, p<0.05; rho = 0.62, p<0.01; and rho = 0.59, p<0.01, respectively). Overall, the three visual perceptual tests exhibited low to moderate levels of internal consistency and test-retest reliability.
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Language eng
Field of Research 110399 Clinical Sciences not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2008, College of Occupational Therapists
Persistent URL http://hdl.handle.net/10536/DRO/DU:30017397

Document type: Journal Article
Collection: School of Health and Social Development
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Created: Fri, 14 Aug 2009, 13:52:53 EST