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Research Article

Achievement Motivation and Intelligence Test Scores: A Test of the Yerkes-Dodson Hypothesis

Authors:

Willy Lens ,

Tiensestraat 102 3000 Leuven, BE
About Willy
N.F.W.O.
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Maurice De Volder

Tiensestraat 102 3000 Leuven, BE
About Maurice
F.K.F.O.
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Abstract

The old Yerkes-Dodson hypothesis of an inverted t -shaped relationship between strength of motivation and level of performance is tested for intelligence test scores. Resultant Achievement motive is measured with the Mehrabian-scales. Four motive groups (quartiles) arc formed. Intelligence is measured with Drouth’s “Test voor Niet-Verbale Abstractie” (non-verbal abstraction) in a neutral and in a high ego-involvement condition. The latter condition is supposed to arouse the achievement-related motives strongly. As hypothesized the most highly motivated group in the high ego-involvement condition performs significantly lower than the less highly motivated subject group. In the neutral condition an inverted U-shaped relationship is neither expected nor found. Secondary analyses using the data from all eight subject groups correspond with the hypothesis. Important practical implications are discussed.

How to Cite: Lens, W. and De Volder, M., 1980. Achievement Motivation and Intelligence Test Scores: A Test of the Yerkes-Dodson Hypothesis. Psychologica Belgica, 20(1), pp.49–59. DOI: http://doi.org/10.5334/pb.656
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Published on 01 Jan 1980.
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