CONCURRENT VALIDITY STUDY OF THE SLOSSON INTELLIGENCE TEST-REVISED INMENTAL-RETARDATION TESTING

The new Slosson Intelligence Test-Revised and the recommended abbrevia ted battery of the Stanford-Binet Intelligence Scale: Fourth Edition w ere given to individuals whose Stanford-Binet Ias ranged from 36 to 11 0. The Slosson-R correlated highly with the Stanford-Binet, r = .92. H owever, except for the moderately retarded category, the Slosson-R uns atisfactorily matched the Stanford-Binet's assignment of individuals t o Ia categories. In contrast, when all individuals were classified as either having or not having mental retardation, the match rate was muc h better. The Slosson-R can adequately screen for mental retardation, but its ability to accurately assign individuals to specific IQ catego ries appears to be limited.