| Abstract: | As part of a ten-year longitudinal study of vocational development being conducted in the Department of Vocational Education at The Pennsylvania State University, it was decided to administer the GATB to an entire ninth grade class of 1,050 boys and girls. Because both wooden and plastic pegboards were being used to assess GATB aptitude manual dexterity (M), it was decided to compare the scores obtained on the two different types of boards. Results of the study indicate that those students who were tested using the wooden boards performed significantly better than did students tested on the plastic boards. Converted score differences for aptitude M ranged from 3 to 26 points with an average difference of 11 points. |
