Validity and reliability of Persian version of the Arm Function in Multiple Sclerosis Questionnaire

Area of Science:

• Neurology
• Rehabilitation Medicine
• Psychometrics

Background:

• Multiple Sclerosis (MS) frequently causes upper extremity dysfunction, impacting daily activities.
• Accurate assessment tools are crucial for monitoring disease progression and treatment efficacy in MS patients.
• The Arm Function in Multiple Sclerosis Questionnaire (AMSQ) is a self-report measure designed to evaluate arm function.

Purpose of the Study:

• To determine the validity and reliability of the Persian translation of the AMSQ.
• To establish the psychometric properties of the Persian-AMSQ for use in individuals with MS.

Main Methods:

• Methodological study involving translation, validity, internal consistency, and test-retest reliability assessments.
• Involved 155 participants with MS.
• Construct validity was assessed using the Nine-Hole Peg Test (9HPT), Coin Rotation Task (CRT), and Functional Independence Measure (FIM).

Main Results:

• High internal consistency (Cronbach's α = 0.99) and excellent test-retest reliability (ICC = 0.98) were observed.
• Significant correlations were found between the Persian-AMSQ and measures of upper extremity function (9HPT, FIM) and dexterity (CRT).
• Face and content validity were confirmed by experts and MS patients.

Conclusions:

• The Persian version of the AMSQ demonstrates strong validity and reliability.
• It is a suitable tool for assessing upper extremity dysfunction in Persian-speaking individuals with MS.