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identify which of these types of sampling is
Chapter 1, Problem 14BSC(choose chapter or problem)
Problem 14BSC
identify which of these types of sampling is used: random, systematic, convenience, stratified, or cluster.
Acupuncture Study In a study of treatments for back pain, 641 subjects were randomly assigned to the four different treatment groups of individualized acupuncture, standardized acupuncture, simulated acupuncture, and usual care (based on data from “A Randomized Trial Comparing Acupuncture, Simulated Acupuncture, and Usual Care for Chronic Low Back Pain,” by Cherkin et al., Archives of Internal Medicine, Vol. 169, No. 9).
Questions & Answers
QUESTION:
Problem 14BSC
identify which of these types of sampling is used: random, systematic, convenience, stratified, or cluster.
Acupuncture Study In a study of treatments for back pain, 641 subjects were randomly assigned to the four different treatment groups of individualized acupuncture, standardized acupuncture, simulated acupuncture, and usual care (based on data from “A Randomized Trial Comparing Acupuncture, Simulated Acupuncture, and Usual Care for Chronic Low Back Pain,” by Cherkin et al., Archives of Internal Medicine, Vol. 169, No. 9).
ANSWER:
Problem 14BSC
Answer:
Step1 of 3:
We have In a study of treatments for back pain, 641 subjects were randomly assigned to the four different treatment groups of individualized acupuncture, standardized acupuncture, simulated acupuncture, and usual care (based on data from “A Randomized Trial Comparing Acupuncture, Simulated Acupuncture, and Usual Care for Chronic Low Back Pain,” by Cherkin et al., Archives of Internal Medicine, Vol. 169, No. 9).
Step2 of 2:
We need to identify which of these types of sampling is used: random, systematic, convenience, stratified, or cluster.