This report presents the findings of the first phase of the assessment of California's Special Driver Test (SDT) program, which consisted of an analysis of a 2-week sample of Driver Safety/Field Referral forms and the driving records of individuals named on the forms. The primary objectives of the study were to 1) determine the percentage of SDT subjects referred from each referral source, 2) estimate the test's difficulty level, 3) identify what license action recommendations were made by the examiner for SDT fails, 4) determine whether the societal risk posed by SDT referrals is greater than that posed by the Federal population of licensed drivers of the same age and sex, 5) determine whether SDT performance is related to driving record, and 6) determine what effect, if any, the SDT program may have had on SDT subjects's safety risk. No attempt was made to evaluate the SDT's interrater or interroute reliabilities nor its validity as an indicator of driving competency.

  • Corporate Authors:

    California Department of Motor Vehicles

    Research and Development Branch
    P.O. Box 932382
    Sacramento, CA  United States  94232-3820
  • Authors:
    • Hagge, R A
  • Publication Date: 1995-9


  • English

Media Info

  • Pagination: 34 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00729896
  • Record Type: Publication
  • Report/Paper Numbers: CAL-DMV-RSS-95-160
  • Created Date: Dec 12 1997 12:00AM