I'm doing a project where I predict whether the US will reach its carbon-neutral goal using past data. And I want to know if it would be an observational study or an experimental study. I feel like it's a bit of both so I'm not sure which one it would be.
2026-03-30 16:44:12.1774889052
Is this an observational study or an experimental study?
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First, welcome to MSE. This question is probably better posted to Cross-Validated, the statistics and data analysis Q&A site. However, given this is a conceptual statistics question, I think it has a place here.
You are performing an observational study, not an experimental one. Why?
Experimental studies require active manipulation of a situation to see a result. Outside of the natural sciences, it is very hard to accomplish this (save for psychology, which has had some good successes).
You are planning to use historical data for your study