title: Commemorating the 80th Anniversary of the Founding of Psychometrika: Introduction by the Guest Editors.
authors.affiliation: Leiden University, Leiden, The Netherlands. heiser@fsw.leidenuniv.nl.
authors.forename: Willem
authors.initials: W
authors.lastname: Heiser
authors.affiliation: University of Illinois, Champaign, IL, USA.
authors.forename: Lawrence
authors.initials: L
authors.lastname: Hubert
mesh_terms: D000846:Anniversaries and Special Events; D003226:Congresses as Topic; D006801:Humans; D009657:North Carolina; D010506:Periodicals as Topic; D011594:Psychometrics