Attempts to predict intelligent behavior: II. A study of problem solving

In Experiment I a group of pupils from a secondary school was given a test of general intelligence, a test of the ability to categorize objects in a flexible way, and five different problem-solving tasks. Subjects who were successful on the problems had higher scores on the intelligence test than the rest. The Categorizing Test was not, however, a good indicator of success. In Experiment II a comparison was made between scores on different parts of the so-called Family Test. With high school pupils and university students as subjects, correlation coefficients in the neighborhood of 0.40 were found between scores when suggesting possible classifications of objects, and scores when choosing a classification to fit different sets of objects. The triangular form of the scatterplots was taken as an indication that an ability to present different interpretations of one's experience is a necessary, but not sufficient condition for success in problem-solving tasks.