Abstract:
OBJECTIVE:We examined the impact of operational variables on diagnosis and decision-making processes, focusing on information search. BACKGROUND:Arguably, the "best" decision-making processes in high-technology cockpits would be those that are both correspondent (objectively accurate) and coherent (rationally sound). In the electronic world, coherence in terms of identification and incorporation of all relevant information is both a prerequisite to and a limiting factor for accurate diagnosis and decision making. METHOD:Regional carrier pilots (N=93) responded to six scenarios by accessing information to determine a diagnosis and decision. RESULTS:Time pressure, a common operational variable, had a strong negative effect on information search and diagnosis accuracy, and the presence of noncongruent information heightened these negative effects. Unexpectedly, source of initial information (automated or other) did not impact any of the dependent variables. Diagnosis confidence was unrelated to accuracy and was negatively related to amount of information accessed. CONCLUSION:Results confirm both the need for coherence in diagnostic processes and the difficulty of maintaining it under time pressure. APPLICATION:One implication of the results of this study is that pilots in high-technology cockpits must be trained to utilize coherent diagnostic processes as standard operating procedure. Additionally, because thorough information search for diagnosis in an automated environment is essential, automated systems must be designed to foster coherent, and thus accurate, diagnostic processes.
journal_name
Hum Factorsjournal_title
Human factorsauthors
Mosier KL,Sethi N,McCauley S,Khoo L,Orasanu JMdoi
10.1518/001872007X312513subject
Has Abstractpub_date
2007-04-01 00:00:00pages
300-10issue
2eissn
0018-7208issn
1547-8181journal_volume
49pub_type
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