On the reliability and validity of, and training in, ergonomics methods: a challenge revisited

This paper revisits the challenge laid down over 15 years ago that ergonomics needs to report on the reliability and validity of its methods if it is to maintain its standing amongst the engineering community. Unfortunately, a review of books reporting on ergonomics methods since that time shows very little change. The theoretical constructs of reliability and validity are presented together with the rationale for conducting studies of training in ergonomics methods. Revisiting the original study shows the way in which such validation work can be undertaken and data reported. It is hoped that this article provides the stimulus for more studies of this nature now the approach has been demonstrated