title: Scientific inquiry. Study designs for program evaluation: how do we know what works?
authors.affiliation: College of Nursing, University of Colorado Denver, Aurora, CO, USA. paul.cook@ucdenver.edu
authors.forename: Paul F
authors.initials: PF
authors.lastname: Cook
mesh_terms: D015400:Clinical Nursing Research; D006302:Health Services Research; D006801:Humans; D015397:Program Evaluation / Q000706:statistics & numerical data*; D016032:Randomized Controlled Trials as Topic; D012107:Research Design / Q000592:standards*; D015983:Selection Bias