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Donald I. Tepas

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Publication statistics

Pub. period:1988-1995
Pub. count:4
Number of co-authors:12

Co-authors

Number of publications with 3 favourite co-authors:

Leslie Beth Herbert:2
Michael J. Paley:1
Kristen M. Haggis:1

Productive colleagues

Donald I. Tepas's 3 most productive colleagues in number of publications:

James C. Duchon:5
Leslie Beth Herber..:3
Roger R. Rosa:2

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13th Intl. Conf. on New Interfaces for Musical Expression

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Donald I. Tepas

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Publications by Donald I. Tepas (bibliography)

1995

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Herbert, Leslie Beth and Tepas, Donald I. (1995): A New Approach to Collecting Survey Data: An Item Response Icon Scale (IRIS). In: Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting 1995. pp. 804-808.

“Obtaining worker survey data can be a time consuming process. A survey often employs a large number of items, and considerable effort is required to assure that the items used will be understood by the target worker population. To facilitate the research process in a diverse worker population, a five-point item Response Icon Scale (IRIS) was developed using the symbols found in Wingdings, a standard font included in many microcomputer word processing programs. The IRIS and a five-point verbal Likert-type Scale were found to be parallel forms, with demonstration of statistically significant parallel forms reliability and convergent validity. These findings, along with that of discriminant validity, indicate that IRIS and Likert-type Scale produce interchangeable data when given to individuals with reading skills. This suggests that the IRIS may be a valuable design tool for collecting survey data from worker groups with diverse reading skills and/or from different cultural backgrounds.”

1994

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Herbert, Leslie Beth, Paley, Michael J., Haggis, Kristen M. and Tepas, Donald I. (1994): A Measure of Subjective Perceptions of Stress: A Validation and Reliability Study. In: Proceedings of the Human Factors and Ergonomics Society 38th Annual Meeting 1994. p. 974.

“Previous research suggests that the subjective perception of stress varies with one's experience and the proximity of the stressful event. Current researchers found an interaction between ratings of tension and experience for firefighters responding to emergency calls. These researchers employed a measure of perceived tension in both a primary study of 21 firefighters and a follow-up study of 17 of these men. The firefighters responded to the question, "How tense did you feel during the following situations on your last call?" For each of the five proximities of an emergency call, waiting for a call at the station, on the way to the call, at the call location, on the way back from the call, and back at the station after the call; firefighters responded on a four point Likert-type scale, ranging from "Not at all" to "Extremely." In addition to the question being presented on daily work logs, the question was included on the background survey, asking how one "usually feels" at each of the call proximities. This question was also employed on a background survey and daily log forms used in a primary study and a follow up study of eight male marine search and rescue crew members. Using the same question format, the crew members were also asked to rate their perceived physical tiredness. This study examined the psychometric characteristics of the data gathered from both worker groups, and the appropriateness of using the measure on a one time background survey as an accurate representation of actual subjective perception of tension. Correlations between the two separate administrations of the background survey for the measure of perceived tension were statistically significant (p < .05). Test-retest reliability of the rating of perceived tension for both the firefighters, = 967, and the crew members, r = .943, was obtained. Concurrent validity (p < .05) was found between the ratings on the background survey and on the daily work logs for both the firefighters, .987, and the crew members, r = .914. Examining the crew members' responses to the measures of perceived tension and physical tiredness, divergent validity was found for the ratings on both the background survey and the daily work logs. The results found by this study demonstrate that the one-time general background survey estimate of perceived stress used in these two studies is valid, easy to administer, and an accurate measure of daily workday log stress estimates.”

1989

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Barnes-Farrell, Janet L., Weiner, Sara P. and Tepas, Donald I. (1989): A Survey of the Natural Outcomes of Unfettered Office Automation. In: Proceedings of the Third International Conference on Human-Computer Interaction 1989. pp. 278-283.

“Discrepancies between faculty word processing needs and support staff skills/practices were identified through the use of structured interviews conducted in an academic department of a large university. Dissatisfaction with typing services provided was attributed, in part, to differences in the nature of the hardware used by faculty and staff. A lack of attention to hardware and software provisions appears to have resulted in substantial duplication of effort.”

1988

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Rosa, Roger R., Monk, Timothy H., Bonnet, Michael H., Eastman, Charmane, Tepas, Donald I., Bootzin, Richard R., Walsh, James K. and Duchon, James C. (1988): Designing Shift Work Systems to Improve Performance and Alertness: What Do We Know and What Do We Need to Know?. In: Proceedings of the Human Factors Society 32nd Annual Meeting 1988. pp. 727-728.

“Approximately 20% of the full-time non-farm workforce in the United States is employed on work systems using schedules other than a fixed day shift of 8 (or less) hours duration. Similar world-wide estimates have been made for industrialized countries by the International Labor Office. Work schedules grouped within these systems include permanent night shift work, rotating shift work, and regular work on shifts of greater than 8 hours duration. A number of factors encourage the use of these systems: many new industrial processes require continuous staffing; the number of industrialized countries is increasing; capital equipment costs can often be reduced by increasing or changing the hours of operation; many workers are interested in a workweek of less than five days; and, there has been a general increase in the demand for around-the-clock services.”

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