The subjects were 55 undergraduates enrolled in psychology classes and classified by their scores on the Human Information Processing Survey as having preferences of left hemisphericity (n = 17), right (n = 19), and integrated hemisphericity (n = 19). Differences in their scores on multiple-choice tests and course grades were found between left- and right-hemisphericity groups with the left-hemisphericity group obtaining higher course grades.
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