Question

question 20 (6 points)
question: first responders have recently been exposed to a harmful environmenta toxin while responding to a call. your job is to determine any long - term effects tha may arise from the exposure. what type of study would be best for this?

1. experimental
2. cohort
3. case - control

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Explanation:

• Experimental study: Involves manipulating variables, which may not be ethical here as we can't deliberately expose more people to the toxin.
• Cohort study: Follows a group (the first - responders exposed to the toxin) over time to observe outcomes (long - term effects). This is suitable as we are interested in the long - term consequences of an already - occurred exposure.
• Case - control study: Compares cases (those with a condition) and controls (without). But here we are focused on predicting long - term effects from exposure, not comparing existing conditions.

Answer:

1. Cohort