The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.
On the Psychophysics of Workload: Why Bother with Subjective Measures?
Abstract
Psychophysical functions describe the relationship between variations in the amplitude of a defined physical quantity and the psychological perception of these changes. Examples are brightness, loudness, and pain. The regularities of these relationships have been formulated into psychophysical laws. The measurement methodology of psychophysical scaling has been refined by the Harvard group led by S. S. Stevens, who proposed a power function as a general form for such laws. The main argument of the present article is that a similar scaling approach can be adapted to the measurement of workload and task demands based upon subjective estimates. The rationale is that these estimates, like other psychophysical judgments, reflect the individual's perception of the amount of processing resources that the subject invests to meet the demand imposed by a task. This approach was successfully applied to the assessment of 21 experimental conditions given to a group of 60 subjects. The paper discusses the main results of this effort and their implications to theory and application in human performance.
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Cites
Stevens, S. S. (1957) · Psychological Review · doi:10.1037/h0046162 · Cited by 3,361
Attention and Performance Viii
(2014) · Psychology Press eBooks · doi:10.4324/9781315802961 · Cited by 1,833
On the economy of the human-processing system.
Navon, D., & Gopher, D. (1979) · Psychological Review · doi:10.1037//0033-295x.86.3.214 · Cited by 1,669
Self-citation(1979) · Springer eBooks · doi:10.1007/978-1-4757-0884-4 · Cited by 181
Measurement of Workload by Secondary Tasks
Ogden, G. D., Levine, J. M., & Eisner, E. J. (1979) · Human Factors: The Journal of the Human Factors and Ergonomics Society · doi:10.1177/001872087902100502 · Cited by 175
Moray, N. (1982) · Human Factors: The Journal of the Human Factors and Ergonomics Society · doi:10.1177/001872088202400104 · Cited by 156
Behavioral Measures of Aircrew Mental Workload
Williges, R. C., & Wierwille, W. W. (1979) · Human Factors The Journal of the Human Factors and Ergonomics Society · doi:10.1177/001872087902100503 · Cited by 129
Application of Conjoint Measurement to Workload Scale Development
(1981) · doi:10.1177/1071181381025001134 · Cited by 115
The Reliability and Validity of Flight Task Workload Ratings
Childress, M. E., Hart, S. G., & Bortolussi, M. R. (1982) · PsycEXTRA Dataset · doi:10.1037/e573962012-011 · Cited by 4
Research works printed but not linked: 13
- Bird, K. L. (1981). Subjective rating scales as a workload assessment technique. In Proceedings of the 17th Annual Conference on Manual Control , Los Angeles.
- Braune, R., and Wickens, C. D. (1983, April). The functional age index: An objective decision criterion for the assessment of pilot performance capabilities. In Proceedings of the Second Symposium on Aviation Psychology (pp. 253–268). Columbus, Ohio; Department of Aviation Psychology.
- Derrick, W. (1981). The relationship between processing resource and subjective dimensions of operator workload. In Proceedings of the Human Factors Society 25th Annual Meeting (pp. 532–536). Santa Monica, CA: Human Factors Society. · doi:10.1177/1071181381025001136
- Hart, S. G., Childress, M. E., and Bortolussi, M. (1981). Defining the subjective experience of workload. In Proceedings of the Human Factors Society 25th Annual Meeting (pp. 527–531). Santa Monica, CA: Human Factors Society. · doi:10.1177/1071181381025001135
- Kahneman, D., 1973, Attention and effort
- 10.1007/978-1-4757-0884-4 · DOI · Paper page
- 10.1037/0033-295X.86.3.214 · doi:10.1037/0033-295x.86.3.214 · Paper page
- Posner, M. I., 1980, The nature of thought: Essays in the honor of D. O. Hebb
- Reid, G. B., Proceedings of the International Conference on Cybernetics and Society
- Sheridan, T. B., 1979, Towards the definition and measurement of the mental workload of transport pilots
- Stevens, S. S., 1966, American Scientist, 54, 385
- Underwood, G., 1979, Psychological issues
- Wickens, C. D. and Yeh, Y.Y. (1982). The dissociation of subjective rating and performance. In Proceedings, 1982 Annual Meeting of 1EEE Conference of Systems, Man and Cybernetics. (pp. 600–603). New York: IEEE.
Cited by
Development of NASA-TLX (Task Load Index): Results of Empirical and Theoretical Research
(1988) · Advances in Psychology · doi:10.1016/s0166-4115(08)62386-9 · Cited by 15,003
Cognitive Architecture and Instructional Design
Sweller, J., van Merrienboer, J. J. G., & Paas, F. G. W. C. (1998) · Educational Psychology Review · doi:10.1023/a:1022193728205 · Cited by 6,023
Cognitive Load Measurement as a Means to Advance Cognitive Load Theory
Paas, F., Tuovinen, J. E., Tabbers, H., & Van Gerven, P. W. M. (2003) · Educational Psychologist · doi:10.1207/s15326985ep3801_8 · Cited by 2,527
IBM computer usability satisfaction questionnaires: Psychometric evaluation and instructions for use
Lewis, J. R. (1995) · International Journal of Human-Computer Interaction · doi:10.1080/10447319509526110 · Cited by 2,429
Paas, F. G. W. C. (1992) · Journal of Educational Psychology · doi:10.1037/0022-0663.84.4.429 · Cited by 2,150
Metadata
- Authors
- Gopher, D., & Braune, R.
- Venue
- Human Factors: The Journal of the Human Factors and Ergonomics Society
- Publisher
- SAGE Publications
- Published
- 1984-10
- Volume
- 26
- Issue
- 5
- Pages
- 519-532
- ISSN
- 0018-7208 (ISSN-L)
- 1547-8181
- OpenAlex
- W1888386172
- Cited by
- 280
- References
- 9
- FWCI
- 6.99
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- journals.sagepub.com/page/policies/text-and-data-mining-license (tdm)
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