This paper examines the question of the hereditary nature of intelligence and the validity of some of the statistical procedures which have been used in measuring the degree of hereditability. The author feels that proof of the question lacks sufficient scientific rigor for the support of any conclusion, particulary for a question of such…

Changing ideas on intelligence testing and the heritability of intelligence are followed through a fifty-year period. Common criticisms of intelligence tests are examined, but it is concluded that intellectual tests will continue to be of value in diagnosing strengths and weaknesses, particularly of exceptional children. (Editor)

Robert L. Thorndike was awarded the Educational Testing Service (ETS) Measurement Award at the 1972 ETS Invitational Conference. In "Heredity, Environment, and Class or Ethnic Differences," J. McV. Hunt addressed several fundamental questions pertaining to the hereditary and environmental influences of the observed social class and ethnic…