Comparability of slosson and S-B estimates of intelligence

The Slosson Intelligence Test and the Stanford-Binet Intelligence Scale (Form L-M) were administered to 44 children. The Slosson Intelligence Test (SIT) correlated .92 with the Stanford-Binet (SB), suggesting agreement in the ordering of individuals. A comparison of measured IQs indicated that the Slosson Intelligence Test overestimated IQ, when compared with the Stanford-Binet, for 39 of the 44 children. The results of the study also suggest that although a high degree of correlation was attained with the Stanford-Binet, the Slosson Intelligence Test does not produce comparable IQs for certain chronological age and intellectual functioning levels.