In a Japanese study, \"researchers looked at 35 people with lower back pain who

Question

In a Japanese study, "researchers looked at 35 people with lower back pain who were enrolled in an aquatic exercise program, which included swimming and walk- g in a pool. Almost all of the patients showed improve- ents after six months, but the researchers found that who participated at least twice weekly showed more significant improvement that those who went only once per week." Which of the following statements is true? A) This experiment proves that swimming causes a reduction in lower back pain. B) This study is a poorly designed experiment since there is no control group and no randomization. C) Conclusions based on this observational study are suspect since participation in the aquatic program may be confounded with other lifestyle behaviors that may cause the improvement in lower back health. D) Conclusions based on this observational study are suspect since a sample size of 35 is too smal. E) This study is not an observational study since the aquatic program is a treatment. (Source: "Ask Well: What are the best swimming strokes to alleviate lower back pain?" New York Times, February 19, 2013, D5.)

Explanation / Answer

Answer for this question is A) this experiment proves that swimming causes a reduction in lower back pain. beacause those who participated at least twice weekly have more signigicant improvment that those who wents only once per week.

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.