The predictive value of the Kuhlmann-Binet Scale for inmates of a state school for the feebleminded

Abstract

590 cases out of a total of 646 obtained the same mental classification after a number of retests in periods ranging from less than 1 year to more than 5 years. Changes in classification based on repeated tests tend to occur downward. It is recommended that commitment and a feeble-minded rating should not be made on the basis of a single examination without giving due consideration to the possibilities of delayed speech in younger children and the probable gain in mental age for some individuals after they have reached a chronological age of 15. (PsycInfo Database Record (c) 2025 APA, all rights reserved)