The practical 'efficiency' of a group scale of intelligence: Studies from the psychological laboratory of Indiana University

Abstract

Describes the standardization of tests of intelligence (1) to aid in a census of feeble-minded children needing institutional care and (2) as an aid in sorting children according to ability in schools. 2800 Ss included 200 feeble-minded, 23 gifted children, 25 subnormal children and the remaining were school children. Concludes that the scale measures intelligence and selects more accurately for retards than for accelerates. The 'Group Point Scale' distinguished feeble-minded from school children. The scale separates nearly as accurately extreme subnormals and markedly accelerated children from the average group. Discusses the administration procedures and other aspects along with the differential value of the 'half scale' and the scale as a whole. (PsycInfo Database Record (c) 2022 APA, all rights reserved)