Characteristics and effectiveness of the driver improvement schools within the Fairfax ASAP, 1973.
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Summary
This 1974 report evaluates the characteristics and effectiveness of Driver Improvement Schools (DIS) within the Fairfax Alcohol Safety Action Project (ASAP). Motivated by the high cost and severity of alcohol-related traffic fatalities, the study aimed to determine which DIS submodalities most effectively imparted knowledge regarding the effects of alcohol on driving. The research also sought to validate a newly developed alcohol knowledge test by examining its ability to distinguish between different defendant groups. The study analyzed data from three types of DIS programs: the Northern Virginia Community College DIS (NVCC-DIS), the Fairfax County High School DIS (FCHS-DIS), and the Weekend DIS (WDIS). To assess effectiveness, researchers developed a standardized multiple-choice knowledge test, refining it through item analysis to ensure appropriate difficulty and discrimination. The evaluation compared pretest and posttest scores within each group and conducted intergroup comparisons. Additionally, the study compared defendants who were "double-staffed" (attending the Fairfax Alcohol Continuing Education Program, or FACE, prior to DIS) against those attending DIS alone, and compared recidivists against non-recidivists to test the instrument's validity. Results indicated that both eight-week programs (NVCC-DIS and FCHS-DIS) significantly increased participants' alcohol knowledge. However, the FCHS-DIS program was more effective, yielding significantly higher posttest scores and greater knowledge gains than the NVCC-DIS. In contrast, the WDIS, which condensed content into two long sessions, failed to increase knowledge; participants actually showed a significant decline in test scores, though this finding was limited by a very small sample size. Defendants who attended the FACE program before DIS scored significantly higher on both pretests and posttests than those attending DIS alone, confirming that prior education raised baseline knowledge, though the incremental gain during DIS was not significantly different. No significant differences were found between the older didactic FACE program and the newer discussion-based version. Furthermore, no significant differences were observed between recidivist and non-recidivist scores, a result attributed to small sample sizes and the tenuous link between knowledge and behavior. The study concludes that while regular DIS programs effectively impart alcohol knowledge, the FCHS-DIS model is superior to the NVCC-DIS. The WDIS is deemed ineffective and requires further investigation. The findings suggest that the knowledge test is valid for measuring instructional gains and distinguishing between treatment levels, but its utility in predicting recidivism remains unproven. The authors recommend examining staffing policies and instructional methods to equalize program effectiveness and conducting further research on the relationship between alcohol knowledge and driving behavior.
Key finding
The Fairfax County High School Driver Improvement School program was significantly more effective at increasing alcohol knowledge than the Northern Virginia Community College program, while the Weekend Driver Improvement School showed no significant improvement in knowledge scores.
Methodology
lab_experiment
Sample size: 438
Provenance
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| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | rosap | — | — | 2 | 2026-05-23 |
| archive | success | — | — | — | 1 | 2026-05-23 |
| extract | success | cached | — | — | 2 | 2026-06-10 |
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| enrich | success | — | — | — | 1 | 2026-05-23 |
| promote | success | — | — | — | 1 | 2026-05-23 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 3 | 2026-06-10 |
| tag | success | vector_similarity | — | — | 20 | 2026-06-11 |
| verify | success | — | — | — | 2 | 2026-06-10 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.
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- Applied Guidance: countermeasure evaluation
- Methodological Resource: validation psychometrics