Table 1.
Behavior items: Means and standard deviations both pre- and post-intervention
| Items | Answering scales | Pre-intervention | Post-intervention |
|---|---|---|---|
| Behavior measures | |||
| During the last 2 weeks I would switch off the lights when I would leave my office for… | 1. 0–30 min 2. 30–60 min 3. 1–2 h 4. 2–4 h 5. More than 4 h 6. When I went home 7. Never |
M = 4.86, SD = 1.88 | M = 4.39, SD = 2.06 |
| During the last 2 weeks I would switch off my ceiling lights when there was sufficient natural light | 1. Always 2. Often 3. Sometimes 4. Seldom 5. Never |
M = 2.94, SD = 1.60 | M = 3.13, SD = 1.57 |
| During the last 2 weeks I would switch my computer to standby mode when I wasn’t using it for… | 1. 0–30 min 2. 30–60 min 3. 1–2 h 4. 2–4 h 5. More than 4 h 6. When I went home 7. Never |
M = 4.84, SD = 2.34 | M = 4.91, SD = 2.35 |
| During the last 2 weeks I would switch my computer to sleep mode when I wasn’t using it for… | 1. 0–30 min 2. 30–60 min 3. 1–2 h 4. 2–4 h 5. More than 4 h 6. When I went home 7. Never |
M = 6.09, SD = 1.93 | M = 5.61, SD = 2.01 |
| During the last 2 weeks I would switch off my computer when I wasn’t using it for… | 1. 0–30 min 2. 30–60 min 3. 1–2 h 4. 2–4 h 5. More than 4 h 6. When I went home Never |
M = 5.95, SD = 0.81 | M = 5.81, SD = 0.88 |
| During the last 2 weeks I kept my office thermostat (usually) at … | 1. Off 2. 1 2. 2 3. 3 4. 4 5. 5 (max) |
M = 2.33, SD = 1.43 | M = 2.31, SD = 1.33 |
| During the last 2 weeks I would lower my thermostat when I found it too hot in my office | 1. Always 2. Often 3. Sometimes 4. Seldom 5. Never |
M = 3.35, SD = 2.07 | M = 2.93, SD = 2.02 |
| During the last 2 weeks when central heating was on, the door was closed | 1. Always 2. Often 3. Sometimes 4. Seldom 5. Never |
M = 3.68, SD = 1.41 | M = 3.34, SD = 1.44 |
| During the last 2 weeks when central heating was on, the windows were closed | 1. Always 2. Often 3. Sometimes 4. Seldom 5. Never |
M = 1.53, SD = 1.00 | M = 1.40, SD = 0.93 |