The Negligent-Operator Treatment Evaluation System provides annual cost-effectiveness analyses of the California Department of Motor Vehicles' Negligent-Operator (neg-op) program. The evaluation system is based on a comparison of the driving records of neg-ops (drivers with multiple traffic conviction and/or accident points) who are randomly assigned to a intervention or a no-contact control group. Three levels of progressively more severe neg-op interventions were evaluated in this manner, the fourth-level intervention (the most severe) was evaluated indirectly using data from level-3 recidivists. Drivers at each level were eligible to receive a standard intervention or an alcohol-tailored intervention. The data for each of the first three levels of the neg-op program revealed a statistically significant reduction in accidents. At level 3 there was a significant difference in the effects of the standard and alcohol interventions, with the standard intervention showing a significant reduction in accidents and the alcohol intervention group displaying a higher accident rate than its control. Regarding injury accidents, when the results of levels 1 and 2 were combined, the alcohol letters (warning letters and notices of intent) were significantly more effective than the corresponding standard interventions; at level 3 the interventions showed the opposite effects, with the standard probation hearing intervention being significantly more effective than the alcohol intervention. In each of the first three levels the standard intervention was significantly more effective in reducing citations than the corresponding alcohol interventions. Regarding alcohol-and drug-related incidents, only the level-2 and -3 interventions produced statistically significant reductions. At level 4, the data showed strong indirect evidence that probation violator sanctions were very effective in reducing accidents and citations.


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    Title :

    Negligent-Operator Treatment Evaluation System. Program Effectiveness Report Number 5 (Detailed Findings)


    Contributors:
    W. C. Marsh (author)

    Publication date :

    1990


    Size :

    93 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English