title: Hierarchical linear modeling: an overview.
authors.affiliation: Division of Biostatistics, Yale University School of Medicine, New Haven, CT 06520, USA.
authors.forename: Maria M
authors.initials: MM
authors.lastname: Ciarleglio
authors.forename: Robert W
authors.initials: RW
authors.lastname: Makuch
mesh_terms: D015233:Models, Statistical; D012942:Social Sciences / Q000706:statistics & numerical data*; D014481:United States