Title: On system validity, quasi-experiments, and safety: a critique of NUREG/CR-6393

Authors: Robert B. Fuld

Addresses: 358 Collinsville Road, Unionville, CT 06085, USA

Abstract: Based on the methods of Cook and Campbell (1979), a quasi-experimental validation model for complex human–machine systems has been recommended for the final evaluation of nuclear power plant control rooms (O|Hara et al., 1997). This model-based approach to validating systems and assuring safety is critiqued in terms of experimental theory and engineering practice. It is concluded that the model may be inappropriate for industry as a general model of engineering validation.

Keywords: NUREG/CR-6393; NUREG-0711; quasi-experiments; validation models; system validity; safety assurance; validation modelling; human–machine systems; nuclear power plants; plant control; nuclear safety; nuclear power; nuclear energy; engineering validation.

DOI: 10.1504/IJRAM.2007.011989

International Journal of Risk Assessment and Management, 2007 Vol.7 No.3, pp.367 - 381

Published online: 07 Jan 2007 *

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