Qualitative studies are used to search for factors that can affect the quality of life for the elderly before retirement, and quantitative studies to support the results of the study.
Using a qualitative study to find factors that can affect the quality of life before retirement. And quantitative studies to support the results of the study.
Using a qualitative study to find the factors affecting the quality of life of the elderly before retirement. And the quantitative study to support the effects of education.