Examining the Psychometric Properties of the Model of Human Occupation Screening Tool-Japanese Version

Abstract

Objective/Background: The Model of Human Occupation Screening Tool-Japanese version (J-MOHOST) was developed, and it was identified that the J-MOHOST did not have any problems in linguistic validation. The purpose of this study is to examine the psychometric properties of the J-MOHOST for the physical disabilities. Methods: Forty-four participants were recruited from the rehabilitative wards and data, including demographic variables and the J-MOHOST scores, were obtained. The fit statistics, rating scale characteristics, and reliability index were examined using the Rasch analysis. Results: There were no misfitting participants, and the J-MOHOST measures reliably separated the participants into 3.95 statistically distinct strata with a person reliability of .88. The result of item fit showed that it did not have noticeable problem in the items of the J-MOHOST. Moreover, the item reliability was .88. The content of the item difficulty could represent the characteristics of occupational participation of the participants in conformity with the rating system of the J-MOHOST. Conclusion: The J-MOHOST rating scale could discriminate the level of occupational participation in physical disabilities. The results indicate that the J-MOHOST is an effective tool for measurement. Further studies are needed to increase the number of participants with a variety of disabilities and settings. 2013.