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Speed-Precision Trade-Off in Mental Rotation: A Model and Some Experiments

机译：心理轮换中的速度 - 精确权衡：一个模型和一些实验

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摘要

Some general hypotheses and a modified Rasch model for time limit intelligence tests are presented and tested experimentally using the mental rotation task of Shepard and Metzler (1971). The hypotheses and model are based on the assumption that interindividual differences in performance on time limit tests reflect differences in speed and precision, and can therefore be described by a model for the trade-off between speed and precision. The model presented is the logistic Rasch model with subject ability depending on the time given to solve an item. It implies triple monotonicity of precision with subject ability, item difficulty and time, and can be regarded as a prescriptive model for time limit tests, analogously to the original Rasch model. The general hypotheses of a trade-off between speed and precision was confirmed by the effect of varying item presentation time on precision, and an item set could be constructed which was Rasch homogeneous and followed the modified Rasch model. Further hypotheses about the effects of concentration and item difficulty on response times in a free time condition with the usual test instruction to work fast without making errors, were also confirmed. Suggestions are given for future extensions of the model.

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