Respuesta :
In a cohort study a scientist collects health data on a group of nurses. characteristic was used to form the cohort occupation.
What are the 3 types of observational study?
The 3 types of observational study are:
- Case Control Observational Study.
- Cohort Observational Study.
- Cross Sectional Observational Study.
Thus, In a cohort study a scientist collects health data on a group of nurses. characteristic was used to form the cohort occupation.
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Answer:
occupation
Explain:
the common factor/how they were picked and selected is by their job/ "occupation".
