Trust in automation and meta-cognitive accuracy in NPP operating crews

Conference · Sat Jul 01 04:00:00 EDT 2006

OSTI ID:22030164

Skraaning, Jr, G; Miberg Skjerve, A B ^[1]

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1. OECD Halden Reactor Project, PO Box 173, 1751 Halden (Norway)

Nuclear power plant operators can over-trust or under-trust automation. Operator trust in automation is said to be mis-calibrated when the level of trust is not corresponding to the actual level of automation reliability. A possible consequence of mis-calibrated trust is degraded meta-cognitive accuracy. Meta-cognitive accuracy is the ability to correctly monitor the effectiveness of ones own performance while engaged in complex tasks. When operators misjudge their own performance, human control actions will be poorly regulated and safety and/or efficiency may suffer. An analysis of simulator data showed that meta-cognitive accuracy and trust in automation were highly correlated for knowledge-based scenarios, but uncorrelated for rule-based scenarios. In the knowledge-based scenarios, the operators overestimated their performance effectiveness under high levels of trust, they underestimated performance under low levels of trust, but showed realistic self-assessment under intermediate levels of trust in automation. The result was interpreted to suggest that trust in automation impact the meta-cognitive accuracy of the operators. (authors)

• Research Organization: American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
• OSTI ID: 22030164
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
ACCURACY
AUTOMATION
CALIBRATION
CONTROL
EFFICIENCY
HUMAN FACTORS
MONITORS
NUCLEAR POWER PLANTS
PERFORMANCE
SAFETY
SIMULATORS