Comparison of Traditional and Computer-Assisted Administrations of the PPVT-R with Trainably Mentally Impaired Students
A group of 20 trainably mentally impaired students, ages 6-24, was randomly assigned to two groups, one of which received the Peabody Picture Vocabulary Test-Revised (Dunn & Dunn, 1981), manual administration , and the other a computer-assisted version, which required as witch closing response. Two weeks later, the order of administration was reversed. The results showed a difference of -1.73 points in the manual to computer administration, and a -3 point difference from computer to manual administration. Overall difference between both administrations was -2.36 points, favoring the manual administration. Recommendations include systematic evaluation and/ or training of TMI or lower- functioning students before using a method of evaluation requiring this type of response.