Mann-Whitney U Test_
| Statement | Group | N | Mean rank | Sum of ranks | Mann–Whitney U test | Z | Asymp. Sig. (two-tailed) |
|---|---|---|---|---|---|---|---|
| I decided to get certified in order to continuously professionally develop within my profession. | Non C/A PM | 107 | 114.40 | 12,241.00 | 6,463.000 | -1.920 | 0.055 |
| C/A PM | 139 | 130.50 | 18,140.00 | ||||
| Total | 246 | ||||||
| I decided to get certified in order to have the possibility of advancement within the organisation to a higher management position. | Non C/A PM | 107 | 129.79 | 13.887.50 | 6,763.500 | -1.249 | 0.212 |
| C/A PM | 139 | 118.66 | 16.493.50 | ||||
| Total | 246 | ||||||
| I decided to get certified because of my employer’s insistence. | Non C/A PM | 107 | 130.93 | 14,009.00 | 6,642.000 | -1.527 | 0.127 |
| C/A PM | 139 | 117.78 | 16,372.00 | ||||
| Total | 246 | ||||||
| I decided to get certified to prove that I have project management competencies and apply for tenders for new workplaces/jobs. | Non C/A PM | 107 | 128.10 | 13.706.50 | 6,944.500 | -0.943 | 0.346 |
| C/A PM | 139 | 119.96 | 16.674.50 | ||||
| Total | 246 | ||||||
| I decided to get certified in order to acquire the competence for managing projects of greater complexity. | Non C/A PM | 107 | 119.81 | 12,820.00 | 7,042.000 | -0.751 | 0.453 |
| C/A PM | 139 | 126.34 | 17,561.00 | ||||
| Total | 246 |
Sample characteristics_
| Level | Variable | Data distribution |
|---|---|---|
| Individual | Age (years) | <25 years, 0.41%; 25–34 years, 13.01%; 35–44 years, 34.14%; 45–54 years, 35.77%; ≥55 years, 16.67% |
| Gender | Men: 73.2%; Women: 26.8% | |
| Education level | Bachelor: 0.81%; Graduate: 82.52%; Postgraduate: 16.67% | |
| Professional | Work experience | <3 years, 8.54%; 3–5 years, 7.72%; 5–10 years, 25.20%; 10–15 years: 24.39%; >15 years, 34.15% |
| Certification level | A: 1.63%; B: 9.35%; C: 49.59%; D: 39.43% | |
| Project domain | Civil engineering/architecture: 56.5%; other: 42.5% |
RII_
| Statement | C/A PM | Non-C/A PM | ||
|---|---|---|---|---|
| RII | Rank | RII | Rank | |
| I decided to get certified in order to continuously professionally develop within my profession. | 0.869 | 1 | 0.824 | 1 |
| I decided to get certified in order to have the possibility of advancement within the organisation to a higher management position. | 0.591 | 4 | 0.639 | 4 |
| I decided to get certified because of my employer’s insistence. | 0.407 | 5 | 0.460 | 5 |
| I decided to get certified to prove that I have project management competencies and apply for tenders for new workplaces/jobs. | 0.753 | 3 | 0.796 | 2 |
| I decided to get certified in order to acquire the competence for managing projects of greater complexity. | 0.768 | 2 | 0.770 | 3 |