“…However, when the introductory psychology grades for the two treatments were combined, the results suggested that intervention based on the selfcontrol model significantly improved introductory psychology grades. Similar effects of self-managed relaxation procedures have been noted for introductory psychology grades (Deffenbacher, Mathis, & Michaels, 1979). Thus, both anxiety management training and self-control desensitization showed significant and equivalent targeted anxiety reduction, a pattern of findings similar to those in previous studies (e.g., Deffenbacher & Shelton, 1978;Denney & Rupert, 1977).…”