Table 2 Measurement of unidimensionality (Factor analysis and Cronbach’s alpha)
From: Enhancing the defensibility of examiners’ marks in high stake OSCEs
Station | No. of factors | Variance explained | Reliability |
|---|---|---|---|
Med.A | 1 | 50.6 | 0.828 |
Med.B | 1 | 50.3 | 0.848 |
Surg.A | 1 | 47.9 | 0.816 |
Surg.B | 1 | 52.6 | 0.853 |
Psych | 1 | 47.7 | 0.813 |
E.Med | 1 | 47.1 | 0.834 |
O&G | 1 | 40.5 | 0.796 |
GP | 1 | 50.7 | 0.836 |
Paed | 1 | 45.8 | 0.803 |