Study excerpt: \"Patients were potentially eligible for recruitment if they had
ID: 3046048 • Letter: S
Question
Study excerpt: "Patients were potentially eligible for recruitment if they had visited the pulmonary department at one university hospital or one county hospital the year before the study started. . . . The patients who were willing to participate were offered an appoint¬ment at the outpatient clinic for assessment." Eckerbald, J., Todt, K., Jakobsson, P., Unosson, M., Skargren, E., Kentsson, M., & Theander, K. (2014). Symptom burden in stable COPD patients with moderate to severe airflow limitation. Heart & Lung, 43(4), 351–357. Excerpt from page 352.
Question 3 options:
Nonprobability, convenience sampling method.
Probability, stratified random sampling method.
My answer is A. The sample was taken from groups that visited the pulmonary department of either the University Hospital or County.
Nonprobability, convenience sampling method.
Probability, stratified random sampling method.
My answer is A. The sample was taken from groups that visited the pulmonary department of either the University Hospital or County.
Explanation / Answer
It is stratified random sample as people who visites ANY university hospital or ANY county hospital are selcted. This is a characteristic and not a convenience sample
Hence, B is the option