A Researcher Wishes to Examine Whether a Teaching Program for Parents

A researcher wishes to examine whether a teaching program for parents increases adherence to a drug regimen among children with seizure disorders.A convenience sample of children in a large teaching hospital is proposed.To prevent confounding of the results by socioeconomic status and type of health insurance,the researcher will utilize which additional sampling technique?

A) Cluster
B) Network
C) Quota
D) Theoretical

Correct Answer:

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