| Number | Axis | Question | Answer Number of replies: 21 | ||||
| Strongly agree | Agree | Neutral | Disagree | Strongly disagree | |||
| 1 | Characteristics of the indoor lighting unit | Types of indoor lighting cause different effects on light pollution. | 47.6% | 38.1% | 14.3% | - | - |
| 10 | 8 | 3 | 0 | 0 | |||
| 2 | The intensity of the indoor lighting unit causes an increase in light pollution. | 66.7% | 23.8% | 9.5% | - | - | |
| 14 | 5 | 2 | 0 | 0 | |||
| 3 | The size of the indoor lighting unit affects the amount of light pollution. | 42.9% | 38.1% | 4.8% | 14.3% | - | |
| 9 | 8 | 1 | 3 | 0 | |||
| 4 | The angles of diffusion and direction of indoor lighting affect light pollution in different ways. | 61.9% | 33.3% | - | 4.8% | - | |
| 13 | 7 | 0 | 1 | 0 | |||
| 5 | The colour of indoor lighting affects the amount of light pollution. | 52.4% | 33.3% | 14.3% | - | - | |
| 11 | 7 | 3 | 0 | 0 | |||
| 6 | The temperature of indoor lighting affects the amount of light pollution. | 57.1% | 28.6% | 14.3% | - | - | |
| 12 | 6 | 3 | 0 | 0 | |||