This is a common approach and helps you to 'triangulate' ie to back up one set of findings from one method of data collection Methodology underpinned by one, with another method underpinned by another very khác Methodology - for example, you might, give out a questionnaire (thường quantitative) to gather statistical data about responses, and then back this up and research in more depth by interviewing (thường qualitative) selected members của sample questionnaire.
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