Ability Factors and the Speed of Information Processing
Measures based on two models from cognitive psychology, the Clark and Chase model of sentence verification and the Shepard and Metzler model of mental rotation, were related to ability factors of the Horn-Cattell theory of fluid and crystallized intelligence. Analysis of individual differences was also used to test the internal consistency of the two cognitive models. The individual differences analysis cast serious doubt on the validity of the sentence verification model, and measures derived from that model were only very weakly related to the ability factors. On the other hand, the model of mental rotation was supported by the individual differences analysis, and a strong relationship was found between parameters of the model and the visualization factor of the Horn-Cattell theory. Possible reasons for the failure to find process explanations for verbal ability factors are considered.
KeywordsMental Rotation Spatial Ability Verbal Ability Fluid Intelligence Negation Time
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