From: Assessing individual-level change in dementia research: a review of methodologies
 |  | IRT method 2 |  | ||
---|---|---|---|---|---|
No change | Reliable increase | Reliable decrease | |||
IRT method 1 | No change | 469 | 0 | 0 | 469 |
Reliable increase | 9 | 9 | 0 | 18 | |
Reliable decrease | 18 | 0 | 30 | 48 | |
496 | 9 | 30 | 535 |