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Published November 4, 2021. Updated March 1, 2023.
Research Basics
- What is research
- What is the scientific method
- Scientific method observation
- Inductive and deductive reasoning
- What is empirical evidence
Types of Research
- Research methods
- Qualitative research design
- Quantitative research design
- Qualitative vs quantitative research
- Mixed methods research
Research Process
- Research process
- Research questions
- Operationalization
- Research problem
- Statement of the problem
- Background research
- Research hypothesis
- Generalization
Research Design
Research Variables
- Type of variables
- Independent variables in research
- Dependent variables in research
- Confounding variables
- Control variables
- Extraneous variables
Experimental research design
- Experimental research
- True experimental design
- Quasi-experimental design
- Double-blind experiment
- Between subject design
- Within subject design
Other research designs and approaches
- Case study research design
- Descriptive research design
- Longitudinal study
- Cross-sectional design
- Survey design
- Naturalistic observation
- Survey response scales
- Control group in science
- Null hypothesis
Data Collection and Analysis
Sampling
- Sampling methods
- Cluster sampling
- Convenience sampling
- Quota sampling
- Snowball sampling
- Simple random sampling
- Sampling error
- Sampling bias
- Systemic sampling
- Stratified sampling
Reliability and Validity
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