Percentage of pupillary dilation as a measure of item difficulty
The purpose of this study was to compare four measures of difficulty of mental multiplication items: percentage of pupillary dilation, latency of solution, number of correct responses, and judgment of item difficulty. Sixteen multiplication problems, classified into four levels of difficulty, were presented visually to 13 Ss, who verbalized their solutions to the problems. Analyses of variance and correlation coefficients were computed. It was concluded that all four measures of difficulty were useful but that judgment of difficulty and latency of solution were better measures of item difficulty than were the other two. A discussion of pupillary dilation and information processing is included.
- HESS, E. H., & POLT, J. M. Pupil size in relation to mental activity during simple problem-solving.Science, 1964, 143, 1190–1192. CrossRef
- KAHNEMAN, D., & BEATTY, J. Pupil diameter and load on memory.Science, 1966, 154, 1583–1585. CrossRef
- KAHNEMAN, D., & BEATTY, J. Pupillary responses in a pitch-discrimination task.Percept. & Psychophys., 1967, 2, 101–105. CrossRef
- PAYNE, D. T., PARRY, M. E., & HARASYMIW, S. J. A comparison of percentage of pupillary dilation with other measures of difficulty of mental multiplication items.Research Bulletin 67-42. Princeton, N J.: Educational. Testing Service, 1967.
- WINER, B. J.Statistical principles in experimental design. New York: McGraw-Hill, 1962. CrossRef
- WOODMANSEE, J. J. Methodological problems in pupillographic experiments. Paper presented at the American Psychological Association, New York, September, 1966.
- Percentage of pupillary dilation as a measure of item difficulty
Perception & Psychophysics
Volume 4, Issue 3 , pp 139-143
- Cover Date
- Print ISSN
- Online ISSN
- Additional Links
- Industry Sectors