Key points are not available for this paper at this time.
Results of a previous study (Gardner, 1961) suggested that independent principles of cognitive control are involved in ( a ) extensiveness and ( b ) selectiveness of attention deployment. The present study extends these results by demonstrating that differential predictions can be made even when criterion scores for the two control principles are obtained from a single set of judgements. It is also shown that individual differences in selective attention can be observed whether compelling irrelevant stimuli enclose, are enclosed by, or are interpolated among relevant stimuli, and that two forms of inhibition—extensiveness of scanning and inhibition of irrelevant motoric responses—may be associated.
Gardner et al. (Thu,) studied this question.