Table 3 Decision study modelling changes estimates of a +/- 95% confidence interval (=SEM × 1.96) around cut score (4/7) and reliability when increasing the numbers of MMI questions manned by a single interviewer
No. of MMI stations | Estimate of SEM × 1.96 to provide +/- 95% confidence interval around cut score | G Coefficient |
|---|---|---|
4 | 1.07 | 0.61 |
6 | 0.88 | 0.70 |
8 | 0.76 | 0.76 |
10 | 0.68 | 0.80 |
12 | 0.62 | 0.82 |