ANALYSIS OF A COMPLEX SKILL: VEHICLE DRIVING.
ARMY MEDICAL RESEARCH LAB FORT KNOX KY
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A battery of twelve driving tests were constructed One hundred eighty subjects were divided into five groups on the basis of the number of hours members of each group drove a truck on a fatigue course after an initial test and prior to a retest on the battery. The fatigue periods were of zero, one, three, seven or nine hours duration. Pre- and post-fatigue test results were corre lated with hours of fatigue driving, where hours of-driving served as the test criterion. Test retest reliabilities ranged from .35 to .88. Validities reached a maximum of .38. Factor analysis was performed on the post-fatigue corre lation matrix. Proprioception, reaction-time, spatial orientation, response orientation, and multilimb coordination were identified as basic skills in vehicle driving. Author