Perhaps the most frequently used scale to assess teacher stress and burnout is the Maslach Burnout Inventory (MBI; Maslach & Jackson, 1981). Often overlooked by users of the MBI, however, is the fact that the MBI measures burnout, not stress. Though the two constructs are related, both conceptually and correlationally, they are nonetheless separate entities. Indeed, the burnout construct and its factors -- emotional exhaustion, depersonalization, and a lack of personal accomplishment -- are thought to be the end result of long-term stressful situations (Maslach, 1981). Thus, one cannot become "burned out" without experiencing intense stress for an extended period of time. Human nature being what it is, however, one does not usually "bum out" on the job if stress is experienced at moderate levels. Thus, the TSI assesses stress in terms of very different, and much more teacher-specific, factors than those that define the MBI.