"Quantitative study, a research method that analyses social status or phenomena based on statistics, has merits of being objective and can be generalized.
Qualitative study can be praised for its subjective feature and in-depth analysis, but has demerits that the feasibility of generation is low, takes long time to perform, and its hard to exclude prejudice of researcher. It is ideal to compare two methods on the same line. Qualitative study can fill up the part which could not be fully analysed in quantitative study, and the other way the quantitative study can supplement qualitative study in the way of providing objectivity with qualitative study, which easily can be subjective. Therefore, it is expected that the supplementary use of both study methods makes us have meaningful study result and enlarge limit and depth of social study.
Key words : quantitative study, qualitative study, data collection, study method"