1. Interdisciplinary: Research that combines elements from multiple fields of study to provide a more comprehensive understanding of a particular topic or issue. 2. Quantitative: Research that involves the collection and analysis of numerical data to draw statistical conclusions and test hypotheses. 3. Qualitative: Research that focuses on understanding phenomena from a holistic perspective, often involving in-depth interviews, observations, and analysis of non-numeric data. 4. Longitudinal: Research that involves studying a group of subjects over an extended period of time to observe changes and trends over time. 5. Cross-sectional: Research that involves studying a group of subjects at a single point in time to compare different variables or characteristics. 6. Experimental: Research that involves manipulating variables to observe the effect on outcomes and establish causation. 7. Observational: Research that involves observing and documenting behavior or phenomena without interference or manipulation. 8. Case study: Research that involves in-depth investigation of a single individual, group, or phenomenon to provide detailed insights and understanding. 9. Meta-analysis: Research that involves combining and analyzing the results of multiple studies on a particular topic to draw more generalizable conclusions. 10. Exploratory: Research that aims to investigate new research questions, generate hypotheses, and explore new areas of study.