1) Suppose there is a study where a researcher conducts an experiment to show th

Question

1) Suppose there is a study where a researcher conducts an experiment to show that deep breathing exercises helps to lower blood pressure. The researcher takes two groups of people and has one group to perform deep breathing exercises and a series of aerobic exercises every day and the other group was asked to refrain from any exercises. The researcher found that the group performing the deep breathing exercises and the aerobic exercises had lower blood pressure. Discuss any issue with this study.

Explanation / Answer

This issue is cause and effect as the study is to show whether 'deep breathing' and only and only 'deep breathing' lowers blood pressure we cannot have give any other exercise to the the experiment group. This is because we would not be able to differentiate whether the effect of lower blood pressure is due to deep breathing exercise or aerobic exercise

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