Modification of the Kohs block design test

Abstract

Results are presented on over ten years' clinical experience with the Kohs block test, together with a review of pertinent studies. A revision of this test, directions, and norms on about 300 cases make this test applicable in two scales which extend from the six-year level to the superior adult levels. "It is offered as a test of some special aptitude rather than of mental capacity in general. Its weakness as a measure of intelligence (in so far as intelligence can be measured), is indicated by a very wide range of individual variation at any particular age or mental level." (PsycInfo Database Record (c) 2025 APA, all rights reserved)