title: Pretest-posttest comparison group designs: analysis and interpretation.
authors.affiliation: Colorado State University, Fort Collins, CO, USA.
authors.forename: Jeffery A
authors.initials: JA
authors.lastname: Gliner
authors.forename: George A
authors.initials: GA
authors.lastname: Morgan
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Harmon
mesh_terms: D003627:Data Interpretation, Statistical; D006801:Humans; D016014:Linear Models; D001523:Mental Disorders / Q000628:therapy*; D012107:Research Design