Investigating Psychometric Properties of the Arm Activity Measure – Thai Version (ArmA-TH) Sub-Scales Using the Rasch Model
Montana Buntragulpoontawee; Jeeranan Khunachiva; Patreeya Euawongyarti; Nahathai Wongpakaran; Tinakon Wongpakaran; Atcharee Kaewma; Stephen Ashford; Trevor G. Bond
<title>Abstract</title> <p><bold>Background:</bold> This study investigated the ArmA-TH measurement properties based on item response theory, using the Rasch model. <bold>Methods:</bold> Patients with upper limb hemiplegia resulting from cerebrovascular and other brain disorders were asked to completed the ArmA-TH questionnaire. Rasch analysis was performed to test how well the ArmA-TH passive and active function sub-scales fit the Rasch model by investigating unidimensionality, response category functioning, reliability of the person and item, and differential item functioning (DIF) for age, sex and education. <bold>Results:</bold><italic> </italic>Participants had stroke or other acquired brain injury (n=185) and the majority were men 126(68.1%), with a mean age of 55(SD 22). Most patients 91(49.2%) graduated elementary/primary school. For the ArmA-TH passive function scale, al...
Montana Buntragulpoontawee, Jeeranan Khunachiva, Patreeya Euawongyarti, Nahathai Wongpakaran, Tinakon Wongpakaran, Atcharee Kaewma, Stephen Ashford, & Trevor G. Bond (2020). Investigating Psychometric Properties of the Arm Activity Measure – Thai Version (ArmA-TH) Sub-Scales Using the Rasch Model. Research Square. https://doi.org/10.21203/rs.3.rs-117526/v1