Effects of degree of initial acquisition, group size, and general mental ability on concept learning and transfer.

The formation of learning sets.

Harry F. Harlow · Psychological Review · 1949 · 2K citations

Natural Sciences, Educational Psychology, Set Theory +1

Mental Discipline in High School Studies.

Edward L. Thorndike · Journal of Educational Psychology · 1924 · 131 citations

Social Sciences, Psychology, Secondary Education +5

Recent research on human problem solving.

Carl P. Duncan · Psychological Bulletin · 1959 · 84 citations

Social Sciences, Behavioral Sciences, Psychology +14

A comparison of three varieties of training in human problem solving.

Lloyd N. Morrisett, Carl I. Hovland · Journal of Experimental Psychology · 1959 · 60 citations

Social Sciences, Educational Psychology, Psychology +7

Concept attainment: I. The role of age and intelligence in concept attainment by induction.

Sonia F. Osler, Myrna Weiss Fivel · Journal of Experimental Psychology · 1961 · 55 citations

Education, Educational Psychology, Psychology +14