NHTSA - People Saving PeopleSeptember 15, 1998

NATIONWIDE SURVEY REGARDING SPEEDING
AND OTHER UNSAFE DRIVING ACTIONS

VOLUME I: METHODOLOGY

 

Conducted for the
National Highway Traffic Safety Administration
U.S. Department of Transportation

 

Conducted by:
Schulman, Ronca, & Bucuvalas, Inc.
145 E. 32nd Street, 5th Floor
New York, New York 10016

 

September 15, 1998


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Technical Report Documentation Page
Cover and Table of Contents (This document)
Chapter 1
Speeding Questionnaire
Unsafe Driving Behaviors Questionnaire

TABLE OF CONTENTS

 

FIGURES AND TABLES

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Sample Design

Sample Construction

Screening to Determine Household Eligibility

Selection of Respondent Within Household

Monitoring of Telephone Interviews

Initial Contact

Spanish Language Interviewers

Refusal Conversion

Field Outcomes

Sample Weighting

Precision of Sample Estimates

Estimating Statistical Significance

 

REFERENCES

 

APPENDIX A. SPEEDING QUESTIONNAIRE

APPENDIX B. UNSAFE DRIVING BEHAVIORS QUESTIONNAIRE

 

 

FIGURES AND TABLES

 

FIGURES

Figure 1. Within Household Selection Procedure: Adult Cross-Section

Figure 2. Refusal Conversion Script

Figure 3. Sample Disposition Categories

 

TABLES

Table 1. Unweighted Size of Sample Components

Table 2. Population Aged 16 and Older by NHTSA Region

Table 3. Estimate of the Total Population of Drivers

Table 4. Sample Disposition

Table 5. Expected Sampling Error (Plus or Minus) at the 95% Confidence Level (Simple Random Sample)

Table 6. Pooled Sampling Error Expressed as Percentages for Given Sample Sizes (Assuming P=Q)