title: Response from cohen and smith.
authors.affiliation: Department of Psychology, Carnegie Mellon University, Pittsburgh, PA 15213. USA and the Department of Psychiatry, University of Pittsburgh, 3811 O'Hara Street, Pittsburgh, PA I 5213, USA.
authors.forename: J D
authors.initials: JD
authors.lastname: Cohen
authors.forename: E E
authors.initials: EE
authors.lastname: Smith