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Differential Item Functioning based on Age for the 3 measures
| Age DIF Item | Mantel Chi-square | p-value |
|---|---|---|
| PFA4 | 6.9771 | 0.0083 |
| PFA42 | 6.2818 | 0.0122 |
| PFB5R1 | 5.3683 | 0.0205 |
| PFC37 | 4.7948 | 0.0301 |
| PFC56 | 5.2446 | 0.0220 |
| SFPF6 | 4.1805 | 0.0409 |
| SFPF7 | 12.4398 | 0.0004 |
| SFPF9 | 5.2043 | 0.0225 |
| SFPF10 | 15.9766 | 0.0001 |
| ODI3 | 6.3844 | 0.0115 |
| ODI4 | 42.8347 | 0.0000 |
| ODI5 | 38.6146 | 0.0000 |
| ODI6 | 27.2124 | 0.0000 |
| ODI9 | 4.4294 | 0.0353 |
| ODI10 | 11.6227 | 0.007 |
