Table 2 Cross validation of the project performance grades (n/%)
Performance grades | Score (mean ± standard deviation) | Predicted group membership | Total | |||
|---|---|---|---|---|---|---|
Poor | Average | Good | Excellent | |||
Poor (52/17.0) | 6.57 ± 1.02 | 48/92.3 | 3/5.8 | 1/1.9 | 0 | 52 (100) |
Average (84/27.5) | 8.16 ± 0.45 | 0 | 84/100 | 0 | 0 | 84 (100) |
Good (38/12.4) | 8.31 ± 0.89 | 0 | 0 | 37/97.4 | 1/2.6 | 38 (100) |
Excellent (132/43.1) | 9.56 ± 0.42 | 0 | 2/1.5 | 6/4.5 | 124/93.9 | 132 (100) |