A comparison of the ratings of mentally retarded prisoners on Army Alpha and Stanford-Binet

Abstract

Army Alpha scores below 10 do not reliably differentiate prisoners according to Stanford-Binet IQ. Since this score corresponds approximately to a critical IQ of 70, the Alpha test cannot be used for diagnosing mental deficiency. However, the test is useful for indicating those individuals who probably are not mental defectives. (PsycInfo Database Record (c) 2025 APA, all rights reserved)