Cognitive Appraisal of Performance Capability in the Prevention of Drunken Driving: A Test of Self-Efficacy Theory

This experiment tested predictions derived from self-efficacy theory by exposing participants to one of two public service announcements based on either symbolic modeling or persuasive efficacy information. Each message was designed to heighten participants' self-efficacy to prevent a friend from driving drunk. Participants in the symbolic modeling condition viewed a public service announcement that demonstrated how to dissuade a friend from driving drunk, and those in the verbal persuasion condition viewed an announcement that only advocated performing the task. A control announcement mentioned the consequences of arrest for drunken driving but contained no efficacy information. Data were gathered during laboratory sessions and during follow-up interviews 1 month later. Overall, laboratory findings supported the hypothesized ordered effects for sources of efficacy information: Symbolic modeling engendered greater efficacy expectations and behavioral intentions than did persuasive efficacy information, which in turn surpassed the control condition on some measures of self-efficacy, but not on behavioral intentions where neither condition differed. Follow-up data indicated that participants in the efficacy-information treatments were equally successful at dissuading a friend from driving drunk, whereas the controls were not.