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Unweighted Task Load Index subscale rating for IRGUS. All subscales range from 0 (“very low”) to 100 (“very high”); the exception is the subscale for performance where 0 is “perfect” and 100 is “failure.”
| Subscale | Unweighted Rating (Median [Range]) |
|---|---|
| Mental Demand | 65 [25, 90] |
| Physical Demand | 45 [20, 75] |
| Temporal Demand | 55 [25, 75] |
| Performance | 30 [10, 80] |
| Effort | 35 [20, 80] |
| Frustration | 20 [15, 80] |
