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Peer reviewedGuttman, Ruth – Educational Gerontology, 1981
Administered the Raven Progressive Matrices (RPM) to (N=408) individuals in 100 family groups. Scores on all five subtests were highest in the 18-26 age group, decreasing with age. Males scored higher on each subtest in each age group. Performance on the RPM increased with additional years of education. (Author)
Descriptors: Abstract Reasoning, Adolescents, Adults, Age Differences
Skanes, Graham R. – 1970
As a prelude to testing deductions from the Ferguson and other ability theories that environment influences patterns of ability, school children in 5 large and 11 small isolated communities on the South Coast of Newfoundland were tested to compare ability patterns of children in small places with those in large communities. Data used for…
Descriptors: Ability, Age Differences, Community Size, Comparative Analysis
