Design Blocks—A Description of a Simple Clinical Test

unselected children (sic) so that the relative difficulty of the designs used seemed to be fairly well established. Since the publications of Kohs' standardization, the writer has used that method, which involves the use of cards, with a fair number of subjects. He has not yet overcome his prejudice in favor of; a straight imitation method, though he occasionally uses this material as a memory test. Some comment in the light of more