title: What are psychological constructs? On the nature and statistical modelling of emotions, intelligence, personality traits and mental disorders.
authors.affiliation: a Department of Psychology , University of Amsterdam , Amsterdam , Netherlands.
authors.forename: Eiko I
authors.initials: EI
authors.lastname: Fried
mesh_terms: D004644:Emotions; D006801:Humans; D007360:Intelligence; D001523:Mental Disorders; D010551:Personality