| Abstract: | ![]()
Two 13-item equivalent-form fatigue check-lists were developed by the scale discrimination method. The items, individually and collected were demonstrated to have validity by comparison of the scores of experimental subjects tested during and after a 4 ?-hour period on a pursuit task, with the scores of controls who were not required to perform any task. Checklist reliabilities were of the order of .90 and both sets of items met the criteria of unidimensionality of a Guttman scale analysis. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
