Examining the validity and reliability of the Persian version of the MiND-B questionnaire in ALS patients.

ABSTRACT

BACKGROUND: In addition to affecting the nerves and muscles, amyotrophic lateral sclerosis (ALS) disease also affects the behavior and cognition of patients. In this study, we examine the validity and reliability of the Persian version of Motor Neuron Disease Behavioral instrument (MiND-B) questionnaire to investigate behavioral changes in Persian-speaking ALS patients. METHODS: Forty-six Persian-speaking patients with ALS filled out the MiND-B questionnaire. Then, the overall scores and each of the domains of this questionnaire were statistically analyzed. RESULTS: Cronbach's alpha coefficient was calculated .70 for the whole questionnaire. To check the validity of the questionnaire, the correlation of its scores with the Edinburgh Cognitive and Behavioral ALS screen (ECAS-A) questionnaire was taken, and this correlation was significant (p = .038). CONCLUSION: The findings of this study show that the Persian version of the MiND-B questionnaire has the necessary validity and reliability to investigate behavioral changes in Persian-speaking patients with ALS.