The document discusses research design and various aspects related to research design such as meaning, definitions, types, purposes, steps, and sampling. It defines research design as the plan and structure of investigation to obtain answers to research questions. Some key points include:
- Research design involves planning and structuring the research process including data collection and analysis.
- Types of research design include qualitative, quantitative, descriptive, exploratory, experimental, evaluation, and action research designs.
- Sampling allows researchers to gather data from a subset of the population. Probability and non-probability sampling techniques are discussed.