Q: How is research design classified?
There are three types of research design: quantitative, qualitative, and mixed method.
Quantitative research involves collecting and analyzing numerical data, and is more used in medical and bio/life sciences.
Qualitative research involves collecting and analyzing non-numerical data, and is more common in social sciences and humanities.
Mixed method, as the name suggests, involves using a combination of quantitative and qualitative methods, and is driven by the need of the research.
For more help with the various design methods, you may refer to the following resources: