A Research Hypothesis States: "Patients with Recurrent Bowel Obstruction Due

A research hypothesis states: "Patients with recurrent bowel obstruction due to Crohn's disease who are assigned to be treated in an emergency room complain less frequently of pain and require less pain medication than those patients admitted, in the usual fashion, and treated on a medical floor." What is the independent variable in the hypothesis?

A) Bowel obstruction due to Crohn's disease
B) Place treated
C) Number of complaints of pain
D) Number of doses of pain medication

Correct Answer:

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