| Predicted | |||
Group | Percentage correction | |||
Observed | IO | CON | ||
Step 1 | IO | 21 | 14 | 60 |
| CON | 10 | 25 | 71.4 |
Total percentage | 65.7 | |||
Step 2 | IO | 25 | 10 | 71.4 |
| CON | 9 | 26 | 74.3 |
Total percentage | 74.3 | |||
Step 3 | IO | 28 | 7 | 80 |
| CON | 7 | 27 | 77.1 |
Total percentage | 78.6 | |||
Step 4 | IO | 28 | 7 | 80 |
| CON | 7 | 28 | 80 |
Total percentage | 80 | |||
Step 5 | IO | 28 | 7 | 80 |
| CON | 8 | 27 | 77.1 |
Total percentage | 78.6 |