Relationship between Locus of Control and Extraversion-Introversion in Predicting Academic Behavior

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Abstract
To investigate the interactive effects of internal-external locus of control and extraversion-introversion on test-taking behavior 58 college students were assigned to four groups according to Rotter's locus of control scale and the Eysenck Personality Inventory extraversion scale. External locus of control was positively related to Neuroticism and unrelated to Extraversion, as predicted. Immediately before a course examination, worry, emotionality, and three expectancy variables were assessed, and the time spent taking the examination (test impulsiveness) was recorded. As hypothesized, internals performed better (though they were no less anxious or impulsive) than externals, and extraverts were more impulsive (though they did not perform less well) than introverts. As predicted, external extraverts tended to perform worse than other students. Neuroticism was the only significant predictor of worry and emotionality (test anxiety).

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