Question 4 Investigators are interested in the relationship between sleep apnea

Question

Question 4

Investigators are interested in the relationship between sleep apnea and Alzheimer’s disease. In order to more thoroughly understand the relationship, these investigators decide to recruit 50 participants with Alzheimer’s and 50 participants without Alzheimer’s, and look at their history of sleep apnea. In terms of study types, this is a...

Non-experimental comparative study

Fun study

Experimental comparative study

Survey study

Non-experimental comparative study

Fun study

Experimental comparative study

Survey study

Explanation / Answer

Answer: Non-experimental comparative study, because the investigator is not applying any treatment on any group. he just collects data and compare the results.

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