Arab Educational Information Network

The purpose of the study was to use the Rasch Model to develop a Scale to measure the quality of life among high school students in the Kingdom of Bahrain. To achieve this, the author built a preliminary version of the scale that consisted of (30) item using the Likert format and the scale was administered to (442) random sample of selected students enrolled in the secondary schools of Bahrain. Results indicated the fit of )24( items to the assumptions of the rating scale model derived from one-parameter Rasch Model of modern measurement theory and thus the final version of the developed measure included (24) items with appropriate psychometric properties. The Scale provides the maximum information to persons with moderate level of quality of life if the mean ability value is (θ=.50) and the item difficulty value is (b=.57), similar to the expectancy values of the selected model of measurement. (Published Abstract)