Effect of redundancy and duration on absolute judgments of visual stimuli.

Abstract

Absolute judgments of stimuli which varied in size, in hue, or in size and hue combined in a correlated fashion, were made at 2 different durations. The results showed considerable gain in discrimination with combined size-hue stimuli, but no effect of duration at all. It is suggested that such tasks are of judgmental discrimination rather than perceptual discrimination, and that while absolute judgments can be limited by perceptual factors, other factors are ordinarily more important.