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The relative validity effect (Wagner, Logan, Haberlandt, & Price, 1968) demonstrated that a strong cue or cause reduces responding
to, or judgments of, a weaker cue or cause. We report two experiments with human subjects using relative validity preparations
in which we investigate one- and two-cue competition effects. Previously, we investigated the effect using instrumental and
Pavlovian conditioning preparations with rats. In the first experiment, we used a procedure analogous to the animal preparations.
In the second experiment, we used a different probabilistic procedure. The results with humans and rats are very similar.
In each species we find similar interference with processing the moderate predictor with one or with two strong competitors. 相似文献
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