Individual differences in formal thought: Role of expectations and aptitudes.

Intellectual Evolution from Adolescence to Adulthood

Jean Piaget · Human Development · 2009 · 1.9K citations

Education, Human Development, Psychology +14

Refinement and test of the theory of fluid and crystallized general intelligences.

John L. Horn, Raymond B. Cattell · Journal of Educational Psychology · 1966 · 1.6K citations

Education, Behavioral Sciences, Psychology +6

Three aspects of cognitive development

Robert S. Siegler · Cognitive Psychology · 1976 · 684 citations

Education, Human Development, Psychology +12

Human acquisition of concepts for sequential patterns.

Herbert A. Simon, Kenneth Kotovsky · Psychological Review · 1963 · 417 citations

Social Sciences, Behavioral Sciences, Psychology +12

A Portable Rod-and-Frame Apparatus

Philip K. Oltman · Perceptual and Motor Skills · 1968 · 356 citations

Education, Educational Assessment, Educational Measurement +8