2. Experimental research method: through the experimental design and the collection and processing of experimental data, verify the hypothesis or theory, get the experimental results and draw conclusions.
3. Questionnaire method: for a certain group or a specific group, collect data in the form of questionnaire survey, discuss a certain problem or evaluate the effect of a certain program.
4. Case study method: select representative cases for in-depth study, and solve problems or explore the regularity of a certain field through description, comparison and analysis of cases.
5. Digital simulation method: Using numerical computer simulation and simulation technology, the phenomenon or process is reconstructed and simulated, so as to get intuitive results and data, and solve a problem from it.
6. Comparative analysis method: by comparing and analyzing the differences and connections between different variables, the relationship and influence between them are revealed and conclusions are drawn.
The above are several common research methods, and different research fields and problems need different research methods to get accurate conclusions.