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

Statistical Tables for Biological, Agricultural and Medical Research.

Lowell J. Reed, R. A. Fisher, F Yates · Journal of the American Statistical Association · 1944 · 3K citations

Public Health, Biostatistics, Epidemiology +8

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

Abstract and concrete behavior an experimental study with special tests.

Kurt Goldstein, Martin Scheerer · The Psychological Monographs · 1941 · 870 citations

Architecture, Building Science, Building Materials +11

Statistical Tables for Biological, Agricultural and Medical Research.

M. G. K., R. A. Fisher, F. Yates · Journal Of The Royal Statistical Society · 1939 · 439 citations

Public Health, Biostatistics, Epidemiology +8

Acquisition and extinction of verbal expectations in a situation analogous to conditioning.

Lloyd G. Humphreys · Journal of Experimental Psychology · 1939 · 280 citations

Public Health, Behavioral Sciences, Psychology +9