Many psychologists have developed theories about how different kinds of brain dominance may affect recall ability of information presented in various formats. Brown and Evans (1986) compare recall ability of subjects classified into three groups according to their approach to problem solving based on their scores on the Human Information Process Survey. The three groups are left (active, verbal, logical), right (receptive, special, intuitive), and Integrative (combination of right and left).

Information was presented to these subjects in tabular form about the number of physicians who practice in six

different states. Recall was measured by how accurately the subjects were able to rank the states from highest to lowest after the presentation concluded.

For the scores below determine whether median recall ability is the same for the three groups (higher scores indicate greater recall).

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