| Abstract: | The test-retest reliability of the Bender was examined for a sample comprised of 84 reading disabled children. The time interval between the first and second administrations of the test ranged from 12 to 24 days. The total working time necessary to reproduce the designs was considered along with total Koppitz score and errors of distortion, rotation, integration, and perseveration. The reliability estimated (r = .83) was quite satisfactory, and the estimate for working time (r = .70) was large enough to indicate a relatively stable behavioral dimension. The estimates for errors of distortion (r = .62) and rotation (r = .56) were somewhat smaller. The estimates for integration (r = .33) and perseveration (r = .29) errors were significant but much smaller than those for other scores. |
