Predicting intentions not to "drink and drive" using an extended version of the theory of planned behaviour

The aim of this study was to determine to what extent the theory of planned behavior (TPB) extended with moral norm and descriptive norm is able to predict intentions not to drink and drive. The authors also wanted to examine whether different processes guide intentions among young drivers (35 years and below) versus drivers aged above 35 years, and women's versus men's intentions. Questionnaires were sent to a sample of 4000 people in Norway aged between 18 and 70 years, and were completed by 1025 respondents. Analyses were conducted among those who had a driver's license and who reported drinking at least 1-2 times per year, resulting in a sample of 879 individuals (46.6% were men, 30.3% were 35 years and younger, M = 43.9 years). The results showed that the TPB variables explained 10% of the variance in intentions in the sample as a whole, and that the extension variables added 2% to the explained variance after controlling for the impact of the TPB components. Perceived behavioral control was the strongest predictor of intentions, followed by descriptive norm, attitude and moral norm. Several group differences were found. The extended TPB model explained 16% and 5% of men's and women's intentions, respectively, and 26% and 9% of the variance in intentions among young and older drivers, respectively. The practical implications of these results for the development of interventions to encourage drivers not to drink and drive will be outlined.

• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S0001457511000261
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00014575
• Supplemental Notes:
  • Abstract reprinted with permission from Elsevier
• Authors:
  • Moan, Inger Synnove
  • Rise, Jostein
• Publication Date: 2011-7

Language

• English

Media Info

• Media Type: Print
• Features: References; Tables;
• Pagination: pp 1378-1384
• Serial:
  • Accident Analysis & Prevention
  • Volume: 43
  • Issue Number: 4
  • Publisher: Elsevier
  • ISSN: 0001-4575
  • Serial URL: http://www.sciencedirect.com/science/journal/00014575

Subject/Index Terms

• TRT Terms: Age; Attitudes; Behavior; Drivers; Drunk drivers; Drunk driving; Gender; Questionnaires
• Uncontrolled Terms: Stated intentions; Theory of planned behavior
• Geographic Terms: Norway
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 01342087
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Jun 21 2011 9:27AM