SPEECH RATE AND NNS COMPREHENSION - A PRELIMINARY-STUDY IN TIME-BENEFIT ANALYSIS

The study reported in this article describes an investigation into the effects of three speech rates: 200 words per minute [wpm] (3.8 syllables per second [sps]); 150 wpm (2.85 sps); and 100 wpm (1.93 sps) on the comprehension of three 350‐ to 400‐word lexically and grammatically graded passages delivered to a group of lower‐intermediate level adult NNSs(nonnative speakers). Results showed that moderately fast speech rates resulted in a significant reduction in comprehension, but that scores on passages delivered at slow rates did not significantly differ from those delivered at average rates. Subjective responses confirmed previous research findings showing that perception of speech rate variation is frequently inaccurate. Results of the investigation are discussed in relation to the practical recommendations that might be drawn from them, particularly in terms of time‐benefit analysis, if future studies support the present tentative findings. © 1990 Language Learning Research Club, University of Michigan