Aside from biomedical research, what other areas of research could greatly benefit from both longitudinal and archival research? Offer a real or hypothetical example of each (longitudinal and archival methods).

 Aside from biomedical research, what other areas of research could greatly benefit from both longitudinal and archival
research? Offer a real or hypothetical example of each (longitudinal and archival methods).
DON’T PLAGIARISM
Also, I attached the lecture, but it is only to understand the concept.
Textbook: https://openstax.org/books/psychology/pages/1-introduction
1) Aside from biomedical research, what other areas of research could greatly benefit from both longitudinal and archival
research? Offer a real or hypothetical example of each (longitudinal and archival methods).
2) In the lecture, I spoke about the suspected correlation between frequently eating fast food and the development of
depression in teens. What would be a psychological correlation you would like to see investigated?
3) Using examples, explain why correlation does not mean causation when making claims based on research.
4) Explain the method of naturalistic observations. Then explain a naturalistic observation you could theoretically carry out
Make sure you explain and apply the following related concepts:
operational definitions, inter-rater reliability, and ecological validity. An example: imagine you want to study how new kids to a school adjust to their new environment. How could you apply this method to learning about that adjustment?
Please help me as soon as possible