Critical Analysis of Workload Predictions Generated by Multiple Resource Theory during Early Crewstation Design.

摘要

Subjective workload ratings based on multiple resource theory were independently collected from two highly experienced pilots for 225 different tasks of an anticipated mission for a future advanced strike aircraft. Factor analysis of their responses suggest that while such ratings could have little actual validity in and even high inter-rater reliabilities, the ratings have high face validity and even high inter-rater reliabilities, the ratings could have little actual validity in terms of efforts required to utilize the seven postulated resource channels (visual or auditory input, spatial, verbal, or analytical cognition, and manual or speech output). Ratings of efforts required for various postulated cognitive resource channels were particularly suspect. Four independent factors were identified for each pilot which accounted for virtually all of the intercorrelations among the seven resource channels. Three factors (visual-spatial, verbal communications, and manual and speech output) were identical for both pilots and accounted for most of their explainable variance. Lighting, A Composite, Conductive Paint, Electrical Bonding Graphite, V-22, SCMCM.