DocumentCode :
3183884
Title :
A comparison of two scoring procedures with the NASA task load index in a simulated flight task
Author :
Moroney, William F. ; Biers, David W. ; Eggemeier, F. Thomas ; Mitchell, Jennifer A.
Author_Institution :
Dayton Univ., OH, USA
fYear :
1992
fDate :
18-22 May 1992
Firstpage :
734
Abstract :
Two issues which pertain to NASA task load index (TLX) application procedures and scoring techniques were investigated. One issue concerned the procedure used to combine ratings on the TLX dimensions into one overall rating. The second issue dealt with the delay of TLX workload ratings for a time period subsequent to completion of a rated flight segment. Participants flew several simulated flight missions under three difficulty levels and rated the workload either immediately following a flight segment or after 15-minute or 48-hour delays. Overall workload ratings were derived through the use of either a weighted or an unweighted combination of TLX dimensions. The results of the scaling techniques were highly correlated (r=0.94), and analyses revealed no differences between the resulting scaling procedures. It was found that the time-consuming use of weighting scales is not necessary and that delaying TLX reports up to 15 minutes does not significantly interfere with recall of workload ratings
Keywords :
aerospace computing; aerospace simulation; human factors; NASA task load index; TLX dimensions; TLX workload ratings; overall rating; scoring; simulated flight task; Aerospace control; Aerospace engineering; Aerospace simulation; Aircraft propulsion; Delay effects; Human factors; Multidimensional systems; NASA; Process control; Systems engineering and theory;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Aerospace and Electronics Conference, 1992. NAECON 1992., Proceedings of the IEEE 1992 National
Conference_Location :
Dayton, OH
Print_ISBN :
0-7803-0652-X
Type :
conf
DOI :
10.1109/NAECON.1992.220513
Filename :
220513
Link To Document :
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