gaining acceptance for the use of multiple imputation in the analysis of public data traffic records...
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Career in public serviceTRANSCRIPT
![Page 1: Gaining Acceptance for the Use of Multiple Imputation in the Analysis of Public Data Traffic Records Forum July 14, 2003 Ted Donnelly RI Department of](https://reader035.vdocuments.us/reader035/viewer/2022081605/5a4d1ba37f8b9ab0599c81c4/html5/thumbnails/1.jpg)
Gaining Acceptance for the Use of Multiple Imputation in the
Analysis of Public Data
Traffic Records ForumJuly 14, 2003
Ted DonnellyRI Department of Health
![Page 2: Gaining Acceptance for the Use of Multiple Imputation in the Analysis of Public Data Traffic Records Forum July 14, 2003 Ted Donnelly RI Department of](https://reader035.vdocuments.us/reader035/viewer/2022081605/5a4d1ba37f8b9ab0599c81c4/html5/thumbnails/2.jpg)
Do I look like a salesman?
![Page 3: Gaining Acceptance for the Use of Multiple Imputation in the Analysis of Public Data Traffic Records Forum July 14, 2003 Ted Donnelly RI Department of](https://reader035.vdocuments.us/reader035/viewer/2022081605/5a4d1ba37f8b9ab0599c81c4/html5/thumbnails/3.jpg)
Do I look like a salesman?
• Career in public service
![Page 4: Gaining Acceptance for the Use of Multiple Imputation in the Analysis of Public Data Traffic Records Forum July 14, 2003 Ted Donnelly RI Department of](https://reader035.vdocuments.us/reader035/viewer/2022081605/5a4d1ba37f8b9ab0599c81c4/html5/thumbnails/4.jpg)
Do I look like a salesman?
• Career in public service
• Skill set is technical
![Page 5: Gaining Acceptance for the Use of Multiple Imputation in the Analysis of Public Data Traffic Records Forum July 14, 2003 Ted Donnelly RI Department of](https://reader035.vdocuments.us/reader035/viewer/2022081605/5a4d1ba37f8b9ab0599c81c4/html5/thumbnails/5.jpg)
Do I look like a salesman?
• What is my product?
![Page 6: Gaining Acceptance for the Use of Multiple Imputation in the Analysis of Public Data Traffic Records Forum July 14, 2003 Ted Donnelly RI Department of](https://reader035.vdocuments.us/reader035/viewer/2022081605/5a4d1ba37f8b9ab0599c81c4/html5/thumbnails/6.jpg)
Do I look like a salesman?
• What is my product?
• Who are my customers?
![Page 7: Gaining Acceptance for the Use of Multiple Imputation in the Analysis of Public Data Traffic Records Forum July 14, 2003 Ted Donnelly RI Department of](https://reader035.vdocuments.us/reader035/viewer/2022081605/5a4d1ba37f8b9ab0599c81c4/html5/thumbnails/7.jpg)
Meteorology
• Rainfall
• Wind resources
• Application to GIS layer
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Chandra X-ray of the Crab Nebula
Departments of AstroPhysics and Statistics
Harvard University
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Wildfires in the American West
Oak Ridge National Laboratory
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Important government applications where imputation is used
• US Census 2000• Survey of Income and Program Participation
(Census Bureau)• Behavioral Risk Factor Surveillance System
(CDC)• Fatality Analysis Reporting System (NHTSA)• Crash Outcome Data Evaluation System
(NHTSA)
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Winners and Losers
• Utah vs. Evans II
• Additional House seat was assigned to NC
• Use of imputation to improve population estimates upheld by U.S. Supreme Court
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Do I look like a salesman?
• Who are my customers?
![Page 13: Gaining Acceptance for the Use of Multiple Imputation in the Analysis of Public Data Traffic Records Forum July 14, 2003 Ted Donnelly RI Department of](https://reader035.vdocuments.us/reader035/viewer/2022081605/5a4d1ba37f8b9ab0599c81c4/html5/thumbnails/13.jpg)
Customers
• Demographers and epidemiologists familiar with Census Bureau methods
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Customers
• Physical scientists use these techniques routinely in graphic representations
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Customers
• Survey researchers find MI useful in analysis of incomplete surveys and to calculate improved sample weights
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Customers
• State legislators
• Data Managers
• Governor’s Highway Safety Representative
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State legislators
• part-time elected representatives
• educated and politically astute
• familiar with the results of survey research, especially opinion polls
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Pew Research Center
“Based on the total sample, one can say with 95% confidence that the error attributable to sampling and other random effects is plus or minus 3.5 percentage points.”
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Data managers
• Develop system for purposes that use storage and retrieval
• May have sophisticated skills but little experience with research
• Primarily concerned with integrity and usefulness of the data
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Governor’s Highway Safety Representative
• Bring HSR along with use of MI in FARS and CODES
• Technical staff may be familiar with MI
• Be available for follow-up consultation
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Additional Concern: Changing public data sets
• multiple imputation is not a method for changing data
• tool for improving estimates in the analyses that make data meaningful and error estimable