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Abstract

This study aimed to investigate the factorial structure of the quality-of-life scale among members of the Jordanian community and to examine the impact of reducing the items of the original 100-item quality of life scale using multiple matrix sampling. The study sample consisted of 3,600 individuals from the Jordanian community who were randomly selected. To collect data, the quality of life scale was employed, and the validity and reliability of the tool were confirmed using an exploratory sample of 170 individuals. The overall reliability coefficient, measured using Cronbach's Alpha, was 0.967. The results indicated that the scale possesses good psychometric properties. Confirmatory factor analysis results demonstrated the validity of the factorial structure of the proposed modified model, showing agreement between the modified model and the obtained data. To verify the effect of reducing the items in the 100-item Quality of Life Scale, a multiple sampling matrix was utilized, splitting the original scale into nine separate questionnaires. Both the original scale and the split questionnaires were administered to various sample sizes. The results of confirmatory factor analysis, conducted using AMOS software, indicated that the tenth and fourth split questionnaires achieved the best goodness of fit.

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