DRUGS AND PLACEBOS: A MODEL DESIGN
- 1 April 1962
- journal article
- research article
- Published by SAGE Publications in Psychological Reports
- Vol. 10 (2) , 383-392
- https://doi.org/10.2466/pr0.10.2.383-392
Abstract
In a study of the effects of 10 mg of d-amphetamine, 80 aged male Ss were randomly assigned to one of 4 groups: (a) Drug, (b) Disguised Drug, (c) Placebo, and (d) Control. Results from the Clyde Mood Scale indicated a positive placebo effect, in the direction of "comfort", a negative effect of Disguised Drug, and a cancellation of these 2 effects in the Drug Group which did not differ from Controls. Both Drug and Disguised Drug Groups showed impaired performance on psychomotor tests measuring speed and accuracy.This publication has 0 references indexed in Scilit: