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Abstract
Previous investigators have emphasized the significant role of time in auditory perceptual processing. Two factors important in this process are word duration and interstimulus interval. This study was designed to investigate the perceptual consequences of independent modification of these two factors, using two orders of sentential approximations. The results show that while both temporal factors operate in perceptual accuracy, word duration plays a more significant role than interstimulus interval. Also, perceptual errors may be offset by increasing the order of sentential approximations. The results are discussed in view of their implications for audiological assessment.