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Introductory
A brief presentation of the Block-design Tests will be attempted in this article. These tests fall in the category of 'performance tests' and have been standardized to measure intelligence. They have been purposely devised to eliminate the factor of language. In this attempt the writer believes he has been especially successful since the instructions themselves may be given entirely through pantomime and imitation.
There has indeed been, and there still is, a great need for tests such as are here presented. In the longer monograph which the writer is preparing for publication, there will be more detailed treatment of many topics, such as the definition of intelligence; an analytic criticism of current methods of standardization; suggested newer statistical procedure; the relation between language ability, performance and intelligence; and other pertinent material.
The content of the present article has been divided into six sections:
(A) The Test Material:
1. The Blocks.
2. The Designs.
(B) The Directions for Applying the Tests:
1. For Subjects Who Can Understand Spoken Language.
2. For Subjects Who Do Not Know the Names of the Colors.
3. For Subjects Who Cannot Understand Spoken Language.
(C) The Score Card and Methods of Scoring.
(D) The Norms.
(E) The Reliability of the Tests.
(F) Serviceability.
