There has been a recent increase in attention devoted to the study of workaholism. As with most new areas of study, issues of definition and measurement have not received their due. The present investigation examined some psychometric properties of Spence and Robbins' measures of the components of workaholism (1992), one of two measures that have received some attention. These measures were relatively stable in a sample of senior Norwegian managers (N = 87) over a 6-mo. period, had generally acceptable internal consistency reliability, and showed factor structures supportive of three components of workaholism.