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Research methods refers to the tools that one uses to do research. These can either be qualitative or quantitative or mixed. Quantitative methods examines numerical data and often requires the use of statistical tools to analyse data collected. This allows for the measurement of variables and relationships between them can then be established. This type of data can be represented using graphs and tables. Qualitative data is non-numerical and focuses on establishing patterns. Mixed methods are composed of both qualitative and quantitative research methods. Mixed methods allow for explanation of unexpected results.