Combined method, a methodical approach necessary to promote education on new demographic issues in Iran

Given the interdisciplinarity of demography and the consequent nature of the issues raised therein, in the case of the implementation of a single (quantitative or qualitative paradigm) in the field of theoretical structuring, data analysis with two basic problems involves the compilation of appropriate empirical evidence for evaluation. Theoretical models related to demographic sub-populations and the comparability of demographic subgroups in the context of the issues under consideration. Qualitative methods are used to solve the first problem and use quantitative methods to solve the second problem. In this paper, a combination of quantitative and qualitative approaches is suggested as the most appropriate solution to deal with these two problems. Philosophically, the mixed method can be considered as the third research paradigm along with quantitative and qualitative paradigms. The results of meta-analysis of the dissertations of the Department of Demography of the University of Tehran (114 items), the largest Demographic studies have been conducted in the field of fertility, and together with mortality and migration, 65% of the studies are included. The total number of dissertations was quantitatively (44.8% survey, 52.6% documents and 6.2% survey-documents), and demographic researchers have not benefited from qualitative methods. Based on research findings. Using qualitative methods, it can be used to complete the conventional quantitative methods of demography, including conceptualizing in surveys and helping to better analyze and interpret survey findings.conceptualization of surveys, and to help to better analyze and interpret the survey findings.