Table 3 Significant DIF findings for memory and attention
Item | Domain | Differential Item Functioning (DIF) | DIF effect (ß) |
|---|---|---|---|
3 | Attention | Country (Poland vs. rest) | 0.99 |
4 | Memory | Country (France + Poland vs. Denmark + United Kingdom) | 1.14 |
5 | Memory | Country (Denmark + France vs. +United Kingdom + Poland) | 0.64 |
8 | Memory | Country (Denmark + Poland vs. United Kingdom + France) | 0.8 |
10 | Memory | Country (Poland vs. rest) | 1.02 |
12 | Memory | Age (< 50y vs. ≥ 50y) | 1.2 |
16 | Attention | Country (Poland vs. rest) | 1.18 |
25 | Attention | Country (Denmark + Poland vs. France + United Kingdom) | 0.81 |
28 | Attention | Country (France + Poland vs. Denmark + United Kingdom) | 1.05 |
32 | Attention | Country (Denmark vs. France + Poland) | 1.3 |
35 | Memory | Country (Poland vs. rest) | 0.73 |
38 | Attention | Country (Poland vs. rest) | 1.89 |
40 | Memory | Country (Poland vs. rest) | 0.92 |
41 | Memory | Country (Denmark + France vs. + United Kingdom + Poland) | 0.88 |