Assessment of the impact of large CRTs and flat panel monitors on productivity and quality in an insurance company
This field study evaluates the impact of replacing existing 17-inchCathode Ray Tube (CRT) monitors with 19 and 21-inch CRT monitors and18.1-inch Flat Panel Displays (FPDs) on matrices of productivity, visual comfort,and physical discomfort among 30 employees within a large insurance company(Policy Service and Claims). Metrics were analyzed over a five (5) monthperiod.During Phase One (initial eight weeks) of the study, metrics weregathered weekly on 17-inch CRT monitors to establish a baseline of data onproductivity, visual comfort and physical discomfort. During Phase Two(12 weeks), each subject used the 19-inch CRT, 21-inch CRT and 18.1-inchFPD for two weeks, respectively interspersed with other subjects in the studyutilizing 17-inch monitors for the same time period. Initially, it appears that the19-inch monitor enables users to enter more keystrokes per hour ( x19 =1894)than its 17-inch counterpart ( x17=1721) which would be a productivityenhancement. However, this value is not statistically significant (p>0.34).Analysis of additional performance metrics yielded similar results (p>0.2).The users level of visual comfort increased with all test display units overtheir existing 17-inch counterpart (p<0.023), but the data was not meaningfuldue to the minute difference between their mean values (∆<0.75). Physicaldiscomfort metrics were analyzed among all of the monitor treatments. Mostemployees were relatively comfortable through the duration of the study. Meanvalues across all physical discomfort metrics measured were less than one on aBorg scale of zero to ten, but none of the values among treatments weresignificant (p>0.31). Anecdotally, the users preferred the larger monitors.
Year of publication: |
2004-12
|
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Other Persons: | Moore, J. Steven (contributor) ; Congleton, Jerome J. (contributor) |
Publisher: |
Texas A&M University |
Subject: | office ergonomics | impact of large monitors |
Saved in:
freely available
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