Citation

Cornelissen M, McClure RJ, Salmon PM, Stanton NA. Appl. Ergon. 2014; 45(6): 1484-1494.

Affiliation

Civil, Maritime, Environmental Engineering and Science Unit, Faculty of Engineering and the Environment, University of Southampton, Highfield, Southampton SO17 1BJ United Kingdom. Electronic address: N.Stanton@soton.ac.uk.

Copyright

(Copyright © 2014, Elsevier Publishing)

DOI

10.1016/j.apergo.2014.04.010

PMID

24794935

Abstract

The Strategies Analysis Diagram (SAD) is a recently developed method to model the range of possible strategies available for activities in complex sociotechnical systems. Previous applications of the new method have shown that it can effectively identify a comprehensive range of strategies available to humans performing activity within a particular system. A recurring criticism of Ergonomics methods is however, that substantive evidence regarding their performance is lacking. For a method to be widely used by other practitioners such evaluations are necessary. This article presents an evaluation of criterion-referenced validity and test-retest reliability of the SAD method when used by novice analysts. The findings show that individual analyst performance was average. However, pooling the individual analyst outputs into a group model increased the reliability and validity of the method. It is concluded that the SAD method's reliability and validity can be assured through the use of a structured process in which analysts first construct an individual model, followed by either another analyst pooling the individual results or a group process pooling individual models into an agreed group model.

Copyright © 2014 Elsevier Ltd and The Ergonomics Society. All rights reserved.

Language: en

Keywords

Cognitive Work Analysis; Strategies Analysis Diagram; Validation