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Analyzing and Mapping Census and Student Data

Analyzing and Mapping Census and Student Data . 2006 PNAIRP Conference Welches, OR. Acknowledgements.

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Analyzing and Mapping Census and Student Data

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  1. Analyzing and Mapping Census and Student Data 2006 PNAIRP Conference Welches, OR

  2. Acknowledgements • The State Board for Community Colleges wishes to thank the Ford Foundation’s Bridges to Opportunity Program and the Washington State College Spark Foundation for their support for this project.

  3. Presenters • David Prince, State Board for Community & Technical Colleges • Beth Hartsoch, Research & Information Analyst, Skagit Valley College • Maureen Pettitt, Director Institutional Research, Skagit Valley College

  4. Workshop Topics • Project Background • Data Structure • Applications • Statewide • College – SVC Example • Sample Questions • Next Steps • What will colleges get? • How can you use the data? • Q & A

  5. Project Background

  6. A Census Based Proxy for Student Socioeconomic Status and Income • Based on census data for income, education (BA or higher) and occupation (professional/managerial) • Student address matched to census • Student assigned median household income and SES for area mapped

  7. Washington State Socioeconomic Status Quintiles 1990 and 2000

  8. Race still matters

  9. State population- more than ever before our future adults are being born and raised in low SES households.

  10. Participation rates measure how close the resemblance is between state population and CTC students • Part Rate = % of students ÷ % state population • Part Rate less than 1 = less than population • Part Rate 1 = Parity • Part Rate greater than 1 = more than population

  11. Participation for Younger and Older Students by SES Quintiles - 2000

  12. Students socioeconomic differences become even more magnified by colleges, raising the question, “How best can system support colleges so varied in student body and community make-up?”

  13. Additional information • For the full research report: Socioeconomic Well-Being of Washington State: Who Attends Community and Technical Colleges (Sept 2006) link to: http://www.sbctc.ctc.edu/data/rsrchrpts/resh_06-4.doc

  14. Data Structure • Relational Database (MS Access) • SBCTC Data Warehouse & Census Data tables • Spatial Data • GIS

  15. GIS – Quick Intro • GIS = Geographic Information System • Useful for: • Visualizing distribution • Spatial analysis • Types of Data: • Point (students @ home addresses) • Line (roads, rivers) • Polygon (block groups, lakes, cities) • Raster (hillshade, aerial photo)

  16. GIS – Quick Intro • GIS = Geographic Information System • Useful for: • Visualizing distribution • Spatial analysis • Types of Data: • Point (students @ home addresses) • Line (roads, rivers) • Polygon (block groups, lakes, cities) • Raster (hillshade, aerial photo)

  17. GIS – Quick Intro • GIS = Geographic Information System • Useful for: • Visualizing distribution • Spatial analysis • Types of Data: • Point (students @ home addresses) • Line (roads, rivers) • Polygon (block groups, lakes, cities) • Raster (hillshade, aerial photo)

  18. GIS – Quick Intro • GIS = Geographic Information System • Useful for: • Visualizing distribution • Spatial analysis • Types of Data: • Point (students @ home addresses) • Line (roads, rivers) • Polygon (block groups, lakes, cities) • Raster (hillshade, aerial photo)

  19. GIS – Quick Intro • GIS = Geographic Information System • Useful for: • Visualizing distribution • Spatial analysis • Types of Data: • Point (students @ home addresses) • Line (roads, rivers) • Polygon (block groups, lakes, cities) • Raster (hillshade, aerial photo)

  20. Spatial Data – Raster

  21. DW – Student Data Family Status Fund Source Ed background Ethnic Program Intent Census – Population Data Demographic Ed background Ethnic SES Med HH Income / Ethnic Employment Database – Example Contents

  22. Database – Placing Students in Block Groups DW Address: 234 Main St, Bellingham 98225 Student on Map GIS BG # on Student Record BG# 530730009003

  23. Database – Adding Student Data to Block Groups Student data is aggregated for each block group and can be joined to the block group data by block group number BG# 530730009003 • BG# 530730009003 • Students: 218 • % Hispanic Students: 5.4% • # Transfer Students: 59 BG# 530730009003 BG# 530730009003

  24. Applications

  25. Sample Questions – Demographics of our Population • What percent of our students’ household income is below $20,000 for a grant application? • How has the SES of our district changed between census dates? • What is the median household income of Hispanic students in our district?

  26. Sample Questions – Demographics of our Population 2000 SVC Students whose HHIN was less than $20,000: 4.4%

  27. Sample Questions – Demographics of our Population • What percent of our students’ household income is below $20,000 for a grant application? • How has the SES of our district changed between census dates? • What is the median household income of Hispanic students in our district?

  28. Sample Questions – Demographics of our Population • What percent of our students’ household income is below $20,000 for a grant application? • How has the SES of our district changed between census dates? • What is the median household income of Hispanic students in our district?

  29. Hispanic SVC Students' Household Income * Based on Median Household Income Census data for the Hispanic population of the block group.

  30. Sample Questions – Serving Our Minority Population • Where are minority groups concentrated within our district? • Where are these groups underrepresented in the student population? • Should we extend our ESL program to a remote location?

  31. Sample Questions – Serving Our Minority Population • Where are minority groups concentrated within our district? • Where are these groups underrepresented in the student population? • Should we extend our ESL program to a remote location?

  32. Familiar Problem: Conflicting methods of tracking ethnic vs. race codes. Future data sets should match. Census Data 1990 & 2000 Separate ethnic and race code fields Can choose “Hispanic” as well as a race code Sample Questions – Serving Our Minority Population SBCTC Data 1993 & 2001 • One ethnic code field • Choosing “Hispanic” precludes choosing another option

  33. Sample Questions – Serving Our Minority Population • Where are minority groups concentrated within our district? • Where are these groups underrepresented in the student population? • Should we extend our ESL program to a remote location?

  34. Sample Questions – Improving our Marketing Efforts • What percent of the population is between 18 and 25 years of age? • What is the geographic distribution of the population older than 25 years who have less than an Associate’s Degree? • What percent of the population attends a community or technical college?

  35. Sample Questions – Improving our Marketing Efforts • What percent of the population is between 18 and 25 years of age? • What is the geographic distribution of the population older than 25 years who have less than an Associate’s Degree? • What percent of the population attends a community or technical college?

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