title: Avoiding confounded comparisons in education research.
authors.affiliation: Division of General Internal Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA. cook.david33@mayo.edu
authors.forename: David A
authors.initials: DA
authors.lastname: Cook
mesh_terms: D015986:Confounding Factors, Epidemiologic; D003627:Data Interpretation, Statistical; D004501:Education, Medical / Q000379:methods / Q000592:standards*; D006801:Humans; D012106:Research