1) The document discusses the key elements of a research design including the research approach, conceptual framework, population and sampling, data collection sources and methods, and data analysis methods.
2) It explains that a research design provides a framework and plan for conducting a study, including what will be done, how it will be done, and how the data will be analyzed.
3) The major elements of a research design are the approach, conceptual framework, population and sampling technique, sources and time of data collection, tools and methods of data collection, and methods of data analysis.