Conversion between Mini-Mental State Examination and Montreal Cognitive Assessment scores in older adults undergoing selective surgery using Rasch analysis.AIMS
 To develop and validate a conversion table between the MMSE and the MoCA using Rasch analysis in older adults undergoing selective surgery and examine its diagnostic accuracy in detecting cognitive impairment.


 Common person linking based on Rasch analysis was performed to develop the conversion table.  Statistically sound conversion between MoCA and MMSE based on Rasch analysis is now possible for surgical setting and clinical research.
Rasch
Conversion between Mini-Mental State Examination and Montreal Cognitive Assessment scores in older adults undergoing selective surgery using Rasch analysis.AIMS

Mini-Mental State Examination
Conversion between Mini-Mental State Examination and Montreal Cognitive Assessment scores in older adults undergoing selective surgery using Rasch analysis.AIMS

Montreal Cognitive Assessment
The conversions were validated by calculating the intraclass correlation coefficient (ICC), score differences between actual and converted scores, and root mean squared error of the difference (RMSE). 
intraclass correlation coefficient (ICC)
The conversions were validated by calculating the intraclass correlation coefficient (ICC), score differences between actual and converted scores, and root mean squared error of the difference (RMSE). 
root mean squared error of the difference (RMSE)