Data collection is an important aspect of any type of research study inaccurate data collection can impact the results of a study and ultimately lead to invalid results data collection methods for impact evaluation vary along a continuum. Data collection is a process of collecting information from all the relevant sources to find answers to the research problem test the hypothesis and evaluate the outcomes data collection methods can be divided into two categories secondary methods of data collection and primary methods of data . Any research is only as good as the data that drives it so choosing the right technique of data collection can make all the difference in this article we will look at four different data collection techniques observation questionnaire interview and focus group session and evaluate their suitability under different circumstances. Data collection methods q ualitative researchers typically rely on four methods for gathering information a participating in the setting b observing directly c interviewing in depth and d analyzing documents and material cul ture these form the core of their inquiry the staples of the diet several
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