"A Psychometric Study to Measure the quality of Life for University Students By Using Item Response Theory"

Document Type : Academic research papers

Authors

1 Faculty of women

2 National Centre for Examinations and Educational Evaluation

3 Faculty of Women for Arts, Science & Education

Abstract

The current research aimed to build and calibrate A quality of life scale by using the Rasch Model (Rating Scale), verify the validity and reliability of the scale in its final form After calibration, Evaluate the person measures corresponding to each possible total score on the scale, and evaluate the norms which illustrate these estimates. The sample of the study consisted of (968) Male-female students university stage. The statistical analysis program Winsteps was used to analyze the data and calibrate the scale according to item response theory, the scale consisted of (111) item covering six sub-dimensions. The results showed the possibility of a calibrating of the quality of life scale by Rasch model (Rating scale) on the one linear metric with one zero joint and fixed measurement unit which is logit, The number of items in the final form (89) item, after the deletion of the items are not suitable for the foundations of objective measurement, and was able to study the verification of the reliability and validity of the scale in its final form, in addition the estimates of the corresponding individuals for each possible grade on the scale were calculated, and T-Score and Percentile Ranks which illustrate these estimates also were calculated.

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Buhūth
Volume 4, Issue 4
Educational sciences
April 2024
Pages 302-346

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