Task | Classical analysis | Rasch model | |||
---|---|---|---|---|---|
Task difficulty | Index of discrimination | Task difficulty | |||
Test 1 | Test 2 | Test 1 | Test 2 | Both tests together | |
Maternity hospital | 0.19 | 0.25 | 1.39 | ||
Lotto | 0.40 | 0.30 | 0.38 | 0.36 | 0.60 |
Mobile phones | 0.20 | 0.35 | 1.33 | ||
IT engineer | 0.27 | 0.36 | 0.38 | 0.31 | 0.76 |
R/W balls | 0.10 | 0.20 | 2.02 | ||
Lawyer | 0.06 | 0.26 | 2.56 |