Table 3 Overview of test items at t1 and t2
Measurement point | t1 | t2 |
|---|---|---|
Items (separate tests) | 39 | 30 |
Well fitted items for separate tests t1 and t2 | 24 | 21 |
Remaining anchor items (Rasch-homogenous separate tests) | 19 | 19 |
Measurement point (dimensions in Andersen model) | t1 | t2 |
Items | 24 | 21 |
Fixed items in demension t1 and t2 | 19 | 19 |