The convergent validity of the Developmental Test of Visual Perception - Adolescent and Adult, Motor-free Visual Perception Test - third edition and Test of Visual Perceptual Skills (non-motor) - third edition when used with adults

Ted Brown, Stephen Elliot, Ralda Bourne, Emma Sutton, Stefan Wigg, Deidre Morgan, Sharon Glass, Aislinn Lalor

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    Objective: The objective of the study was to investigate the convergent validity of 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) when used with adults. Method: Two hundred and twenty-one participants aged 20+ years (49 with and 172 without neurological impairment) completed the DTVP-A, MVPT-3 and TVPS-3. Spearman rho correlation coefficients were used to analyse the convergent validity of the three tests. Results: The DTVP-A (non-motor) total score was significantly correlated (p<0.01) with the MVPT-3 and the TVPS-3 total scores (rho = 0.73 and rho = 0.75 respectively). The MVPT-3 total score was also significantly correlated (p<0.01) with the TVPS-3 total score (rho = 0.79). The DTVP-A figure-ground subscale was found to be significantly correlated (p<0.01) with TVPS-3 subscales 1 to 7 with rho coefficients ranging from 0.36 to 0.56, as was the DTVP-A visual closure subscale (rho coefficients ranging from 0.43 to 0.64) and the DTVP-A form constancy subscale (rho coefficients ranging from 0.51 to 0.64). The DTVP-A total score was also significantly correlated (p<0.01) with subscales 1 to 7 of the TVPS-3 (rho coefficients ranging from 0.48 to 0.68). Moreover, the TVPS-3 total score was significantly correlated (p<0.01) with the figure-ground, visual closure and form constancy subscales of the DTVP-A (rho = 0.62, rho = 0.65 and rho = 0.68). Furthermore, the MVPT-3 total score was significantly correlated (p<0.01) with the figure-ground, visual closure and form constancy subscales of DTVP-A (rho = 0.59, rho = 0.68 and rho = 0.65 respectively) and with subscales 1 to 7 of the TVPS-3 (rho coefficients ranging from 0.53 to 0.70). Conclusion: The DTVP-A, MVPT-3 and TVPS-3 exhibited moderate to high levels of convergent validity. The clinical implications of the findings of the study are that the DTVP-A, MVPT-3 and TVPS-3 appear to be measuring similar visual perceptual skills, but it is also important to note that the three tests all assess the visual perceptual skills in different ways.

    Original languageEnglish
    Pages (from-to)134-143
    Number of pages10
    JournalBritish Journal of Occupational Therapy
    Volume75
    Issue number3
    DOIs
    Publication statusPublished - Mar 2012

    Keywords

    • Assessment
    • Perception
    • Validity

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