The best replacement for an observational study is an experiment. |
The best alternatives to an observational study are rated as following: |
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Your alternative for an observational study is not listed? Suggest! |
No companions for an observational study have been suggested so far. |
You have in mind a companion for an observational study and it is not yet here? Propose! |
an observational study |
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an experiment |
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experimental |
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