Perceptual versus analytical responses to the number concept of a Weigl-type card sorting test.

A Simple Objective Technique for Measuring Flexibility in Thinking

Esta A. Berg · The Journal of General Psychology · 1948 · 2.3K citations

Social Sciences, Behavioral Sciences, Psychology +9

A behavioral analysis of degree of reinforcement and ease of shifting to new responses in a Weigl-type card-sorting problem.

David A. Grant, Esta A. Berg · Journal of Experimental Psychology · 1948 · 2.2K citations

Public Health, Behavioral Sciences, Psychology +12

Toward a dynamic psychology of cognition.

Edna Heidbreder · Psychological Review · 1945 · 59 citations

Social Sciences, Behavioral Sciences, Psychology +6

The relative difficulty of the number, form, and color concepts of a Weigl-type problem.

David A. Grant, Omer R. Jones, Billie Tallantis · Journal of Experimental Psychology · 1949 · 43 citations

Medicine, Mathematics, Mathematics Education +10

The Attainment of Concepts: VI. Exploratory Experiments on Conceptualization at Perceptual Levels

Edna Heidbreder · The Journal of Psychology · 1948 · 33 citations

Social Sciences, Psychology, Cognitive Psychology +7