Question

A disruption of a gene called DYXC1 on chromosome 15 for humans may be related to an increased risk of developing dyslexia. Researchers1 studied the gene in 109 people diagnosed with dyslexia and in a control group of 195 others who had no learning disorder. The DYXC1 break occurred in 10 of those with dyslexia and in 5 of those in the control group. Science News, August 30, 2003, p 131.
Is this an experiment or an observational study? Experiment Observational study

Answer 1

Answer:

This is an observational study.

Explanation:

Here, it can be noted that the researcher does not manipulate the method of intervention; Instead, DYXC1 attenuated breaks in both the diseased and control groups. Therefore, it can be considered as an observational study.

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