Comparability of the Rey-Osterrieth and Modified Taylor Complex Figures Using Total Scores, Completion Times, and Construct Validation

Abstract

The Modified Taylor Complex Figure (MTCF) was developed as an alternate form for the Rey-Osterrieth Complex Figure (ROCF) to assess visuospatial abilities. The present study examines the comparability of the figures by comparing (a) total scores and completion times on copy and recall trials using a repeated-measures design and an incidental administration procedure, and (b) the pattern of relationships between each of the figures and a number of demographic, convergent, and discriminant measures in a sample of community-dwelling adults. Overall, the study supports the use of the MTCF as a comparable measure of visuospatial memory and construction to the ROCF.

This study was supported by a research grant from the University of British Columbia to Anita M. Hubley. We would like to thank Lydia Hamilton for her assistance in the collection and entry of the data used in this study and for her role as primary scorer of the BDT for the purpose of providing inter-scorer reliability data, and Shawnda Lanting for her role as secondary scorer of the ROCF and MTCF for the purpose of providing inter-sector reliability data.

Notes

¹A detailed scoring guide for the MTCF is available upon request from the first author.

²For both the WAIS-III Block Design and Vocabulary subtests, raw scores and age-corrected scores produced essentially the same results; thus, only raw scores are used in the present study.

³The model drawing used for the BDT is available upon request from the first author.

⁴Only the scores from the primary scorer (A.H.) are used in these main analyses.

⁵Whenever possible, effect sizes are reported in addition to the statistical test results to provide evidence (independent of sample size) for whether an effect is non-trivial or not (see Zumbo & Hubley (1998) for a discussion of power and effect size). Kirk's (1996) criteria for interpreting effect size are as follows: small effect = .010 to .058, medium effect = .059 to .137, and large effect = > .137. Kirk's criteria are for omega-sq.; however, these criteria may be appropriately applied to interpreting partial eta-squared which is a similar measure of strength of association.

Note: ^ap < .05; ^bp < .01; ^cp < .001

Note: ^ap < .05; ^bp < .01; ^cp < .001; N = 71.

Note: ^ap < .05; ^bp < .01; ^cp < .001.

⁶Only the BDT scores from the primary scorer (L.H.) are used in these analyses.