Normal-hearing teenagers' performance on time-compressed sentential stimuli

Teenagers with normal hearing, reading, and learning abilities yielded normative data on time-compressed speech, either the Revised CID sentences or 3rd-order sentential approximations. There were 6 Ss, either all boys or all girls, in each of 12 subgroups combining age (median ages: 13, 15, 17 yrs), gender (M or F), SPL of test (45 or 60 db SPL), type of material ( RCIDs or sentential approximations), and percent time compression (0, 40, or 60%). The expected poorer performance was found with sentential approximations, either increased time compression, and with decreased level. This study provides normative data for teenagers' performance on tests of time-compressed sentential material.