Table 1. Summary of Six Prior Work Fatigue-Related Instruments.
| Instrument | Maslach Burnout Inventory (MBI) Maslach et al. (1996) |
Oldenburg Burnout Inventory (OLBI) Demerouti et al. 2003) |
Copenhagen Burnout Inventory (CBI) Kristensen et al. (2005a) |
Occupational Fatigue Exhaustion Recovery Scale (OFER) Winwood et al. (2005, 2006) |
Burnout Measure (BM) Pines & Aronson (1988) |
Shirom-Melamed Burnout Questionnaire (SMBQ) Melamed et al. (2006) |
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| Construct | Emotional Exhaustion (original measure) |
Exhaustion (revised measure) |
Exhaustion | Work Burnout |
Client Burnout | Chronic Work Fatigue |
Acute Work Fatigue |
Physical Exhaustion |
Mental Exhaustion |
Emotional Exhaustion |
Physical Fatigue |
Cognitive Weariness |
Emotional Exhaustion |
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| Construct definition | “Feelings of being emotionally overextended and exhausted by one's work.” “The emotional exhaustion scale measures the depletion of emotional energy, distinct from physical exhaustion or mental fatigue.” | No definition provided, though the intent of the measure appears to be an assessment of overall work exhaustion (i.e., tiredness). | “Exhaustion is defined as a consequence of intensive physical, affective, and cognitive strain, i.e., as a long-term consequence of prolonged exposure to certain job demands.” | “The degree of physical and psychological fatigue and exhaustion that is perceived by the person as related to his/her work.” | “The degree of physical and psychological fatigue and exhaustion that is perceived by the person as related to his/her work with clients.” | “Inefficient action patterns; declining interest, involvement and commitment; reduced concentration and motivation; and negative emotions.” | None | Physical exhaustion represents the experience of “low energy, chronic fatigue, and weakness.” | Mental exhaustion represents the experience of “negative attitudes toward one's self, work, and life itself.” | Emotional exhaustion represents the experience of “feeling helpless, hopeless, and entrapment.” | Physical fatigue refers to “feelings of tiredness and low levels of energy in carrying out daily tasks at work.” | Cognitive weariness refers to “feelings of slow thinking and reduced mental agility. | Emotional exhaustion refers to “feeling that one lacks the energy needed to invest in relationships with other people at work.” |
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| Total # of items | 9 | 5 | 8 | 7 | 6 | 5 | 5 | 7 | 7 | 7 | 6 | 5 | 3 |
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| Number of items assessing: | |||||||||||||
| Overall tiredness | 3 | 3 | 3 | 5 | 1 | 0 | 5 | 6 | 0 | 0 | 4 | 0 | 0 |
| Overall RFC | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Physical tiredness | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
| Physical RFC | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mental tiredness | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mental RFC | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 |
| Emotional tiredness | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Emotional RFC | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
| Other (non-fatigue) Constructs | 5 | 1 | 4 | 1 | 3 | 5 | 0 | 0 | 7 | 7 | 1 | 0 | 0 |
Note: RFC = Reduced functional capacity.