It was the purpose of the present study to determine the shape of the TEPR function during a dichotic shadowing task when the imposed work load is beyond the capability of the subject.It was hypothesized that as the task became increasingly difficult, the plotted functions of the maximum TEPR and words/s produced would start out small, increase rapidly, then level off or decrease reflecting the amount of information processing actually done. Ratings of subjectively perceived effort would also follow this pattern, whereas ratings of perceived task difficulty would continue to increase. Analyses were performed on mixed between-subjects and within-subjects designs using Two-way Analyses of Variance for repeated measures. The Newman-Keuls Procedure was used for all post-hoc comparisons.The results clearly demonstrated that the maximum TEPR reflects information actually being processed rather than the imposed difficulty of the task. Subjective ratings of perceived effort appear to reflect the same. The TEPR is not a good indicator of perceived task difficulty since ratings of task difficulty continued to increase after the TEPR leveled off.
| Identifer | oai:union.ndltd.org:BSU/oai:cardinalscholar.bsu.edu:handle/183206 |
| Date | January 1986 |
| Creators | Dunham, Douglas N. |
| Contributors | Clark, William R. |
| Source Sets | Ball State University |
| Detected Language | English |
| Format | viii, 58 leaves : ill. ; 28 cm. |
| Source | Virtual Press |
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