title: Wundt versus Galton--two approaches to gathering psychophysical measurements.
authors.forename: A V
authors.initials: AV
authors.lastname: Popple
authors.forename: D M
authors.initials: DM
authors.lastname: Levi
mesh_terms: D006801:Humans; D010465:Perception; D011237:Predictive Value of Tests; D011601:Psychophysics; D012107:Research Design