Implementation of selection of service providers
| Indicators | Mean | Standard deviation | Mean rank |
|---|---|---|---|
| (1) Procurement documents contain instructions for the use of efficient water and energy and environmentally friendly materials | 3.34 | 1.24 | 4 |
| (2) Procurement documents contain instructions to employ competent construction workers in their respective fields | 3.92 | 1.34 | 2 |
| (3) Procurement documents contain instructions to employ construction workers who must have certificates in their fields | 3.99 | 1.31 | 1 |
| (4) Procurement documents contain instructions regarding equal risk responsibility for the main parties who are involved in the construction project | 3.78 | 1.32 | 3 |
| Indicators | Mean | Standard deviation | Mean rank |
|---|---|---|---|
| (1) Procurement documents contain instructions for the use of efficient water and energy and environmentally friendly materials | 3.34 | 1.24 | 4 |
| (2) Procurement documents contain instructions to employ competent construction workers in their respective fields | 3.92 | 1.34 | 2 |
| (3) Procurement documents contain instructions to employ construction workers who must have certificates in their fields | 3.99 | 1.31 | 1 |
| (4) Procurement documents contain instructions regarding equal risk responsibility for the main parties who are involved in the construction project | 3.78 | 1.32 | 3 |
Note(s): Level of implementation 5 = often (mean = 4.51–5.00), 4 = sometimes (mean = 3.51–4.50), 3 = rarely (mean = 2.51–3.50), 2 = very rarely (mean = 1.51–2.50), 1 = never (mean = < 1.50)