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Download full textPezzullo, Thomas R.; Madaus, George F. – 1971
A study of twins was conducted to determine the presence of an hereditary component in short term memory and in three aspects of verbal divergent thinking--flexibility, fluency, and originality. Results showed the existence of a significant genetic component in the trait of short term memory, while none was found in verbal divergent thinking. (AG)
Descriptors: Biological Influences, Cognitive Processes, Creative Thinking, Divergent Thinking
Jensen, Arthur R. – 1974
This paper, focusing on differences between Caucasians and Negroes in the United States, summarizes from a "scientific standpoint" the main facts and theoretical issues involved in the study of human racial differences and behaviors. Three principles are considered to govern the orientation of this document: (1) objective research and…
Descriptors: Black Achievement, Black Youth, Culture Fair Tests, Disadvantaged Environment
