1. the cost-efficiency of introducing disproportionate stratified sampling of those at higher risk for rape and sexual assault victimization;

  2. the cost-efficiency of supplementing the standard area household sampling frame with one or more frames derived from administrative sources with higher concentrations of victims (e.g., college residence hall records, police files, emergency room records, etc.);

  3. the best estimation approach to deal with telescoping effects arising from the use of bounded questions in a longitudinal setting;

  4. the effect of changing the survey to have a more neutral context;

  5. the effects of following a neutral/behavioral orientation for questions used to screen for rape and sexual assault victimization;

  6. the joint sampling and measurement error implications of self-administration of a single respondent chosen in each participating household;

  7. the effect of expanding the definition of rape and sexual assault to include those without the capacity to give their consent to the offender;

  8. the error and cost implications of improved training and supervision of field representatives;

  9. ways to improve estimation in the presence of series victimization;

10. effective models to estimate the underreporting of rape and sexual assault on the NCVS based on data from a periodic independent survey; and

11. issues related to collecting data on rape and sexual assault criminal victimization from adolescents (12-17 years of age) because of their relatively high risk of that victimization.

The panel recommends that this research be conducted in a coordinated manner because many of the issues to be investigated interrelate.

RECOMMENDATION 10-12 The Bureau of Justice Statistics should conduct a series of coordinated research investigations to enable it to resolve each of the preceding specific issues in developing the design for the recommended stand-alone survey on rape and sexual assault.

Enhanced Communication with Data Users

As BJS moves in new directions to improve its measurement of rape and sexual assault, the agency needs to embrace external advice from the data user and statistical communities, and set up mechanisms to ensure open, regular, and effective communication with these communities. We offer three recommendations to BJS to better enhance this communication: establishment of a permanent advisory committee, regular data user confer-

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