1. scientific principles: the research of educational psychology should be based on scientific methods and theories, follow scientific research principles and norms, and ensure the reliability and effectiveness of research results.

2. Ethical principles: Educational psychology research should follow ethical principles, respect the rights and dignity of the research object, and ensure that the research process will not cause harm or adverse effects to the research object.

3. Repeatability principle: Educational psychology research should be repeatable, that is, the research results should be repeatedly verified by other researchers.

4. Statistical principle: The research of educational psychology should follow the statistical principle and adopt appropriate statistical methods to analyze the research data to ensure the reliability and validity of the research results.

5. Pluralism principle: The study of educational psychology should consider the influence of many factors, including individual differences, cultural differences and social environment. Only in this way can we have a more comprehensive and accurate understanding of educational phenomena and problems.

Practical principles: The research of educational psychology should be practical, that is, the research results should be able to provide guidance and help for practical education and promote educational reform and development.

7. Innovative principle: Educational psychology research should be innovative, open up new research fields, methods and theories, and promote the development and progress of educational psychology.