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Table 3 Cross-tabulation of IRT RCI 1 versus IRT RCI 2

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