| Variable | Characteristics | Frequency | Percentage |
| Firm | Construction firms | 35 | 58.3 |
| Consultancy services | 25 | 41.7 | |
| Total | 60 | 100.0 | |
| Position in Firm | Senior staff | 33 | 55.0 |
| Management | 27 | 45.0 | |
| Total | 60 | 100.0 | |
| Working Experience | 1 - 5 years | 1 | 1.7 |
| 6 - 10 years | 11 | 18.3 | |
| 11 - 15 years | 12 | 20.0 | |
| 16 - 20 years | 21 | 35.0 | |
| Above 20 years | 15 | 25.0 | |
| Total | 60 | 100.0 | |
| Knowledge in Construction Project Progress Measurement | Intermediate | 2 | 3.3 |
| Adequate | 27 | 45.0 | |
| Advanced | 31 | 51.7 | |
| Total | 60 | 100.0 |