Evaluation of the Effects of a Seat Belt Education Program among Elementary School Children in Loudoun County, Virginia

Senk, Stanley A.; Schwartz, Susan-Lou · 1972 · ROSA P / United States. National Highway Traffic Safety Administration

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Summary

This 1972 study, conducted by National Analysts, Inc. for the National Highway Traffic Safety Administration (NHTSA), evaluated the effectiveness of a seat belt education program for elementary school children. Motivated by previously low seat belt usage rates among American motorists and evidence that school-based driver education correlates with restraint use, the study aimed to determine if exposing children to safety education would increase their personal belt usage and potentially influence their parents or older siblings through diffusion. The research employed a quasi-experimental design comparing Loudoun County, Virginia (experimental site), with Prince Georges County, Maryland (control site). In Loudoun County, teachers in grades kindergarten through seven implemented a one-month educational program in April 1972, involving approximately three hours of instruction per child. To measure behavioral change, researchers conducted direct observations of seat belt usage in cars containing children aged 6 to 11 at shopping centers. Data were collected on eight Saturdays across three periods: before, during, and after the program. Approximately 15,000 cars were observed. The methodology utilized three observation conditions—arriving, leaving, and in-transit—to maximize accuracy while accounting for visibility limitations. Additionally, 340 children in Loudoun County were interviewed on the final day to assess self-reported usage and program recall. The results indicated a statistically significant increase in lap belt usage among elementary school children in Loudoun County. Front seat usage rose from 6.1% in the pre-program period to 7.7% during the program, and further to 9.9% post-program. In contrast, usage in the control county decreased slightly, though not significantly. Notably, there was no significant increase in belt usage among adults or older children (ages 12–17), indicating that the program did not produce a substantial diffusionary effect on family members. Interview data supported the observational findings: 90% of interviewed children recalled discussing seat belts in school, and 70% reported telling their parents about the lessons. Self-reported usage among children increased from 13% to 28%, with common barriers to use cited as inaccessibility, discomfort, or simply forgetting. The study concludes that the educational program successfully increased seat belt usage among its direct target audience, elementary school children. However, it failed to generate significant secondary effects on parents or older siblings, suggesting that behavioral change was limited to those directly exposed to the instruction. The authors note that usage peaked on the final observation day, implying the program’s effects may have continued to grow beyond the study period. The findings support the use of school-based education as a viable strategy for increasing restraint use among children, while highlighting the difficulty of achieving broader familial behavior change through child-mediated interventions.

Key finding

Lap belt usage among elementary school children in Loudoun County increased from 6.1% to 9.9% following the educational program, while usage in the control county decreased.

Methodology

naturalistic

Sample size: 15000

Provenance

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Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.

Topics

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• seat belt use
• child passenger safety

Information type

What kind of knowledge this paper contributes, grouped by family — independent of topic (what it is about) and method (how it was studied).

• Applied Guidance: countermeasure evaluation
• Empirical Findings: observational prevalence