title: Difficulties in analyzing trends in psychology.
authors.affiliation: Department of Educational and Counseling Psychology, University of Missouri, Columbia 65201, USA. mpm553@mizzou.edu
authors.forename: M P
authors.initials: MP
authors.lastname: Martens
mesh_terms: D001527:Behaviorism; D015706:Bibliometrics; D019336:Cognitive Science / Q000639:trends; D015986:Confounding Factors, Epidemiologic; D006801:Humans; D009488:Neurosciences / Q000639:trends; D011572:Psychoanalysis / Q000639:trends; D011584:Psychology / Q000639:trends*; D011643:Publishing / Q000639:trends*; D014481:United States