INFERENCES REGARDING THE BACS OF NON-RESPONDENTS IN THE CANADIAN ROADSIDE SURVEY

This paper addresses the problem of non-respondent bias in roadside surveys and develops a mathematical paradigm relating the absolute and conditional blood alcohol content (BAC) distributions (with response as an argument of conditionality). The implications of this model are evaluated on the basis of various assumptions regarding the probability of response at defined BAC levels, using data from the Canadian National Roadside Survey (CNRS). Accordingly, the objectives of the investigation are twofold: (1) To examine the theoretical relationship between the (obviously known) conditional BAC distribution of BAC-tested drivers (respondents), and the absolute (unknown) BAC distribution of drivers in the population at large (respondents plus non-respondents); (2) To evaluate that theoretical framework on the basis of various assumptions regarding the probability of response at defined BAC levels, using concrete summary data from the CNRS.

• Supplemental Notes:
  • Roadside Surveys--Proceedings of the Satellite Conference to the 8th International Conference on Alcohol, Drugs and Traffic Safety 23-25 June 1980, Umea, Sweden held in association with the International Committee on Alcohol, Drugs and Traffic Safety and organised by the Department of Forensic Medicine, Umea University, Umea.
• Corporate Authors:

  Dokumentationscentralen foer Alkohol- Och

  Narkotikaforskning, CAN, P.O. Box 27302
  Stockholm,   Sweden 
• Authors:
  • Warren, R A
  • Kannemann, K
• Conference:
  • Roadside Surveys--Proceedings of the Satellite Conference to the 8th International Conference on Alcohol, Drugs and Traffic Safety held in association with the International Committee on Alcohol, Drugs and Traffic Safety and
  • Location: Umea , Sweden
  • Date: 1980-6-23 to 1980-6-25
• Publication Date: 1982

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 68-91

Subject/Index Terms

• TRT Terms: Blood alcohol levels; Errors; Mathematical models; Physical distribution; Population; Roadside; Surveys; Theory
• Uncontrolled Terms: Roadside surveys
• Old TRIS Terms: Response
• Subject Areas: Freight Transportation; Safety and Human Factors; Society;

Filing Info

• Accession Number: 00396583
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: HS-037 586
• Files: HSL, USDOT
• Created Date: Aug 31 1985 12:00AM