Employee mental health concepts internal consistency survey items (N = 36, unless otherwise indicated)
| Mental health indicator | Mean* | SD* | Min | Max | No. of items (scale) | Cronbach’s α | Inter-item correlation |
|---|---|---|---|---|---|---|---|
| Stress (Low → High) | 1.71 | 0.605 | 4 | 14 | 4 (4-pts) | 0.842 | |
| Fatigue (Low → High) | 2.97 | 1.237 | 9 | 53 | 8 (7-pts) | 0.918 | |
| Sleep quality (Good → Bad) | 1.96 | 0.707 | 5 | 19 | 5 (4-pts) | 0.815 | |
| Concentration (Bad → Good) | |||||||
| • Momentary [N = 321] | 7.12 | 1.246 | 3 | 10 | 1 (10-pts) | ||
| • Overall | 3.89 | 1.346 | 5 | 34 | 5 (7-pts) | 0.880 | |
| Productivity (Bad → Good) | |||||||
| • Momentary [N = 321] | 7.36 | 1.116 | 3 | 10 | 1 (10-pts) | ||
| • Overall | 7.03 | 0.774 | 5 | 9 | 1 (10-pts) | ||
| Mental well-being (Bad → Good) | 7.75 | 0.970 | 5 | 10 | 1 (10-pts) | ||
| Engagement (High → Low) | 1.92 | 0.387 | 10 | 22 | 8 (4-pts) | 0.739 | |
| Emotional exhaustion (Good → Bad) | 2.29 | 0.376 | 12 | 25 | 8 (4-pts) | 0.726 | |
| Depression (Low → High) | 1.56 | 0.583 | 2 | 7 | 2 (4-pts) | 0.361 | |
| Mood: tense arousal (High → Low) | |||||||
| • Momentary [N = 321] | 2.13 | 0.472 | 3 | 13 | 4 (4-pts) | 0.814 | |
| • Overall | 2.00 | 0.500 | 7 | 17 | 4 (4-pts) | 0.840 | |
| Mood: hedonic tone (Low → High) | |||||||
| • Momentary [N = 321] | 1.85 | 0.403 | 4 | 14 | 4 (4-pts) | 0.675 | |
| • Overall | 3.10 | 0.380 | 4 | 12 | 4 (4-pts) | 0.590 |
| Mental health indicator | Mean* | SD* | Min | Max | No. of items (scale) | Cronbach’s | Inter-item correlation |
|---|---|---|---|---|---|---|---|
| Stress (Low → High) | 1.71 | 0.605 | 4 | 14 | 4 (4-pts) | 0.842 | |
| Fatigue (Low → High) | 2.97 | 1.237 | 9 | 53 | 8 (7-pts) | 0.918 | |
| Sleep quality (Good → Bad) | 1.96 | 0.707 | 5 | 19 | 5 (4-pts) | 0.815 | |
| Concentration (Bad → Good) | |||||||
| • Momentary [ | 7.12 | 1.246 | 3 | 10 | 1 (10-pts) | ||
| • Overall | 3.89 | 1.346 | 5 | 34 | 5 (7-pts) | 0.880 | |
| Productivity (Bad → Good) | |||||||
| • Momentary [ | 7.36 | 1.116 | 3 | 10 | 1 (10-pts) | ||
| • Overall | 7.03 | 0.774 | 5 | 9 | 1 (10-pts) | ||
| Mental well-being (Bad → Good) | 7.75 | 0.970 | 5 | 10 | 1 (10-pts) | ||
| Engagement (High → Low) | 1.92 | 0.387 | 10 | 22 | 8 (4-pts) | 0.739 | |
| Emotional exhaustion (Good → Bad) | 2.29 | 0.376 | 12 | 25 | 8 (4-pts) | 0.726 | |
| Depression (Low → High) | 1.56 | 0.583 | 2 | 7 | 2 (4-pts) | 0.361 | |
| Mood: tense arousal (High → Low) | |||||||
| • Momentary [ | 2.13 | 0.472 | 3 | 13 | 4 (4-pts) | 0.814 | |
| • Overall | 2.00 | 0.500 | 7 | 17 | 4 (4-pts) | 0.840 | |
| Mood: hedonic tone (Low → High) | |||||||
| • Momentary [ | 1.85 | 0.403 | 4 | 14 | 4 (4-pts) | 0.675 | |
| • Overall | 3.10 | 0.380 | 4 | 12 | 4 (4-pts) | 0.590 |
Note:
*The mean and standard deviation values, based on the sum of the item outcomes, are divided by the number of items in the scale for ease of interpretation
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