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Dmi Evaluation Mcgarrell

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Dmi Evaluation Mcgarrell

  1. 1. Evaluating the Drug Market Intervention Initiative BJA Drug Market Intervention Workshop July 2009
  2. 2. Evaluation Issues <ul><li>How will we know if DMI made a difference? </li></ul><ul><li>Need to measure and understand – what we did </li></ul><ul><li>Impact on neighborhood, citizens, individuals </li></ul><ul><li>Utilizing multiple measures </li></ul><ul><li>Compared to what? </li></ul>
  3. 3. Evaluation Issues <ul><li>Evaluation includes both an assessment of what was done and whether it had an impact </li></ul><ul><li>Process Evaluation </li></ul><ul><ul><li>Program monitoring (“outputs”) </li></ul></ul><ul><li>Outcome Evaluation </li></ul><ul><ul><li>What are you trying to affect? (“outcomes”) </li></ul></ul>
  4. 4. Design Issues- Comparisons <ul><li>Pre/post design </li></ul><ul><li>Trends </li></ul><ul><li>Comparison groups </li></ul><ul><ul><li>DMI target areas compared to drug market areas not receiving intensive intervention </li></ul></ul><ul><ul><li>Drug market offenders involved DMI compared to those involved in traditional enforcement </li></ul></ul><ul><ul><li>Surrounding areas to examine “displacement” and “diffusion of benefits” </li></ul></ul>
  5. 5. Possible Data Sources – Individual Impact <ul><li>Program records (e.g., clients served) </li></ul><ul><li>Probation/parole history </li></ul><ul><ul><li>Meeting attendance </li></ul></ul><ul><ul><li>Number of visits (i.e. home visits) </li></ul></ul><ul><ul><li>Employment status </li></ul></ul><ul><ul><li>Urine testing </li></ul></ul><ul><li>Criminal history data </li></ul><ul><ul><li>Pre/post intervention </li></ul></ul><ul><ul><li>Arrest, conviction, sentencing </li></ul></ul>
  6. 6. Possible Data Sources – Individual Impact <ul><li>Self report data (e.g. survey or interview*) </li></ul><ul><ul><li>Perception of risk (victimization; enforcement) </li></ul></ul><ul><ul><li>Self-reported offenses </li></ul></ul><ul><ul><li>Gun carrying behavior </li></ul></ul><ul><ul><li>* Sample surveys available at http://www.cj.msu.edu/~outreach/psn/psnresources.html </li></ul></ul>
  7. 7. Possible Data Sources – Community Impact <ul><li>Law enforcement data </li></ul><ul><ul><li>Offenses known to police by various offense types </li></ul></ul><ul><ul><li>Arrests </li></ul></ul><ul><ul><li>Calls for police service </li></ul></ul><ul><li>Community survey </li></ul><ul><li>Interviews/focus groups with residents </li></ul><ul><li>Systematic observation/ethnographic approaches </li></ul>
  8. 8. Outcome Measures (Individual Level) <ul><li>Employment </li></ul><ul><li>Participation in social service programs </li></ul><ul><ul><li>Education, substance abuse counseling, food, clothing, housing </li></ul></ul><ul><li>Arrest records </li></ul><ul><ul><li>Prevalence </li></ul></ul><ul><ul><li>Incidence </li></ul></ul><ul><ul><li>Location of new arrests (assess displacement) </li></ul></ul><ul><li>Contact with law enforcement/courts </li></ul>
  9. 9. Outcome Measures (Individual Level) <ul><li>Perceptions of the certainty and severity of punishment (deterrence) </li></ul><ul><li>Perceptions of social support services </li></ul><ul><li>Perceptions of procedural and substantive justice </li></ul><ul><li>Perceptions of police and the criminal justice system </li></ul><ul><ul><li>Trust in police </li></ul></ul>
  10. 10. Outcome Measures (Community Level) <ul><li>Drug hotline reports </li></ul><ul><li>Calls for service </li></ul><ul><li>Drug buy attempts </li></ul><ul><li>Crime incidents </li></ul><ul><ul><li>Property; Violent; Drug-related; Total Gun Crime </li></ul></ul>
  11. 11. Outcome Measures (Community Level) <ul><li>Perceptions of neighborhood residents and influentials – “quality of life” </li></ul><ul><ul><li>Perceived changes in levels of crime </li></ul></ul><ul><ul><li>Perceived changes in level of physical and social disorder </li></ul></ul><ul><ul><li>Perceptions of neighborhood safety/fear of crime </li></ul></ul><ul><ul><li>Neighborhood cohesion/relations </li></ul></ul><ul><ul><li>Collective efficacy (neighbors willing to look out for others and area) </li></ul></ul><ul><ul><li>Perceptions of the police and justice system </li></ul></ul>
  12. 12. Summary <ul><li>Greatest impact is likely at the neighborhood level </li></ul><ul><li>Showing results will buy support </li></ul><ul><li>Assistance is available </li></ul><ul><ul><li>MSU technical assistance role to support evaluation </li></ul></ul>

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