NotesFAQContact Us
Collection
Advanced
Search Tips
Source
Publication Type
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Showing one result Save | Export
Pezzullo, Thomas R.; And Others – 1972
Heritability is defined as the proportion of a manifested trait's varience that is due to genetic variation. Sixty-five pairs of twins were employed to investigate the heritability of: (1) short term memory (Jensen's Level 1), operationalized using of modified "digit span" test; (2) the general intellective factor (Jensen's Level II),…
Descriptors: Academic Ability, Compensatory Education, Genetics, Heredity