Explain why experiments are better than your own personal experience at making causal claims.Explain

Explain why experiments are better than your own personal experience at making causal claims.
Explain why quasi-experiments and correlational studies can be seen as similar but why quasi-experiments are superior.
Provide a reason a researcher might want to conduct a small-N design. Provide a reason why a researcher might want to avoid conducting a small-N design.
 Lastly, please tell me the learning resources that were most helpful to you in this course.  I would like to know what tools I should keep for next semester. 
The course is research methods in psychology