1. Theoretical research: This type of research focuses on developing new theories, frameworks, or models to explain or predict phenomena in a specific field. The goal is to improve our understanding of a particular topic and provide a foundation for further empirical research. 2. Experimental research: This type of research involves conducting controlled experiments to test hypotheses or investigate the effects of interventions. The goal is to gather empirical evidence to support or refute a given theory or idea. 3. Qualitative research: This type of research involves collecting and analyzing non-numerical data, such as interviews, observations, or text. The goal is to explore deeper insights and understand complex phenomena in context. 4. Quantitative research: This type of research involves collecting and analyzing numerical data using statistical methods. The goal is to quantify relationships between variables and test hypotheses using objective measurements. 5. Mixed-methods research: This type of research combines both qualitative and quantitative methods to provide a more comprehensive understanding of a topic. The goal is to triangulate findings from multiple sources to enhance the validity and reliability of the research. 6. Action research: This type of research involves collaboration between researchers and practitioners to solve real-world problems or improve practices. The goal is to generate practical knowledge that can lead to tangible improvements in the field. 7. Applied research: This type of research focuses on addressing specific, practical problems or challenges in a particular field. The goal is to generate actionable solutions or recommendations that can be implemented in practice. 8. Exploratory research: This type of research aims to investigate a new or understudied topic to generate initial insights or hypotheses. The goal is to lay the groundwork for more in-depth research in the future. 9. Longitudinal research: This type of research involves studying the same group of individuals or entities over an extended period of time. The goal is to track changes or trends over time and understand patterns of development or behavior.