title: Dichotomization and manipulation of numbers.
authors.forename: T Paul
authors.initials: TP
authors.lastname: Hutchinson
mesh_terms: D003863:Depression / Q000175:diagnosis* / Q000453:epidemiology*; D006801:Humans; D007182:Income; D008433:Mathematics; D011570:Psychiatry / Q000379:methods*; D011581:Psychological Tests; D012720:Severity of Illness Index