This study was performed to determine how keyboard geometric differences at angles of 5°, 10°, 15°, and 25° affected user keyboard performance. Sixteen participants typed from hard copy stimulus material to an IBM Datamaster (System/23). One-way analysis of variance with repeated measures produced no significant performance differences. Participants reported the keyboard uncomfortable at 5° and 25°. Participants reported no difference between the 10° and 15° positions (p <.05). The authors recommend a range of 10° to 18° for fixed sloped keyboard and 10° to 25° adjustment range for a flexible keyboard.
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References
1.
AldenD.G.DanielsR.W.KanarickA.F., “Human Factors Principles for Keyboard Design and Operation–A Summary Review,”St. Paul, Minnesota: Systems and Research Center, Honeywell, Inc., 1970.
2.
Anthropometric Source Book, Volume I: Anthropometry for Designers. NASA Reference Publication 1024, Yellow Springs, Ohio: Webb Associates, 1978.
3.
Anthropometric Source Book, Volume II: A Handbook of Anthropometric Data. NASA Reference Publication 1024, Yellow Springs, Ohio: Webb Associates1978.
4.
EmmonsW. H.HirschR.S., “A Comparison of a low-profile keyboard at angles of 5°, 12°, 18°, and a European 5° Keyboard with Typewriter Key Layouts”. San Jose, Calif: GPD Human Factors Center, IBM, 1981.
5.
GalitzW.O., CRT Keyboard Human Factors Evaluation. UNIVAC Memorandum, 1965, as reported in AldenD.G.DanielsR.W.KonsrickA.F., “Human Factors Principles for Keyboard Design and Operation–A Summary Review,”St. Paul, Minnesota: Systems and Research Center, Honeywell, Inc., 1970.
6.
ScalesE.M.ChapanisA., “The Effect on Performance of Tilting the Toll Operator's Keyset,”Journal of Applied Psychology, 452–456, Vol. 38, No. 6, 1954.
7.
TCA.Safety regulations for display workplaces in the office sector. No. ZH 1/618. Trade Cooperative Association, Central Office for Accident Prevention and Industrial Medicine. Langwartweg 103, D-5300 Bonn 1. Edition 10.1980, Section 4.3.2.
8.
GrandjeanE., “The Anthropometric Need for a Flat Keyboard,” Report 1, Zurich: Swiss Federal Institute of Technology, 1980.
9.
CakirA.HartD. J.StewartT. F. M.The VDT manual.Darmstadt, West Germany: IFRA, 1979.
10.
MillerI.SutherT.W., “Preferred Height and Angle Settings of CRT and Keyboard for a Display Station Input Task.” Proceedings of the Human Factors Society, Human Factors Society, 1981.
11.
RoebuckJ. A.KirschR.S.K.H.E.ThomsonW.G., Engineering Anthropometry Methods, New York: John Wiley and Son, 1975.
12.
RuppB.A.HirschR.S.“Human Factors of Work Stations with Display Terminals HFC-22,”San Jose, Calif.: GPD Human Factors Center, IBM, Inc., 1977.
13.
SAS User's Guide, 1979 Edition, Raleigh, North Carolina. SAS Institute, 1979.
