Those who have used the American Council on Education Psychological Examination (A.C.E.) will, no doubt, have noted that in a number of cases there is considerable difference between the Quantitative (Q) and the Linguistic (L) centile ranks. This report is concerned with an investigation to determine in a limited way, what significance there might be in the disparity of such scores. In the fall of 1953, 2500 new students entered Iowa State College for whom scores on the A.C.E. were available. From this group, all cases were selected where the Q and the L centile ranks differed by 50 or more centiles and also for whom first quarter grade averages were obtainable. There were 221 such students. For comparison, another group was selected whose Q and L scores either were identical or differed by not more than 5 centiles. The size of this group was arbitrarily limited to the first 200 cases in the total alphabetical list, roughly about half of all such cases available.
Proceedings of the Iowa Academy of Science
©1954 Iowa Academy of Science, Inc.
Fritz, Martin F.
"Q and L Difference Scores on the A.C.E. Test,"
Proceedings of the Iowa Academy of Science, 61(1), 356-357.
Available at: https://scholarworks.uni.edu/pias/vol61/iss1/43