title: Comparison of 2 means for matched observations (paired t test) and t test assumptions.
authors: Visiting assistant professor, Department of Orthodontics and Dentofacial Orthopedics, Faculty of Medicine, University of Bern, Bern, Switzerland; private practice, Corfu, Greece.
authors: Nikolaos
authors: N
authors: Pandis
mesh_terms: D016001:Confidence Intervals; D003627:Data Interpretation, Statistical; D018865:Dental Research / Q000706:statistics & numerical data*; D006801:Humans