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indicate whether the observational study used is
Chapter 1, Problem 27BB(choose chapter or problem)
Indicate whether the observational study used is cross-sectional, retrospective, or prospective.
The Nurses’ Health Study was started in 1976 with 121,700 female registered nurses who were between the ages of 30 and 55. The subjects were surveyed in 1976 and every two years thereafter. The study is ongoing.
Questions & Answers
QUESTION:
Indicate whether the observational study used is cross-sectional, retrospective, or prospective.
The Nurses’ Health Study was started in 1976 with 121,700 female registered nurses who were between the ages of 30 and 55. The subjects were surveyed in 1976 and every two years thereafter. The study is ongoing.
ANSWER:
Problem 27BB
Answer:
Step1 of 3:
We have The Nurses’ Health Study was started in 1976 with 121,700 female registered nurses who were between the ages of 30 and 55. The subjects were surveyed in 1976 and every two years thereafter. The study is ongoing.
Step2 of 3: