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Analyzing and Mapping Census and Student Data. 2007 Innovations Conference New Orleans March 6, 2007. Acknowledgements.
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Analyzing and Mapping Census and Student Data 2007 Innovations Conference New Orleans March 6, 2007
Acknowledgements • The State Board for Community and Technical Colleges wishes to thank the Ford Foundation’s Bridges to Opportunity Initiative and the Washington State College Spark Foundation for their support for this project.
Presenters • Tina Bloomer, Director, Student Achievement Projects, Washington State Board for Community & Technical Colleges • Maureen Pettitt, Director of Institutional Research, Skagit Valley College • Essential contributions to this presentation by Beth Hartsoch (Skagit Valley College) and David Prince (Washington SBCTC)
Presentation Topics • Project Background • Washington State Board for Community & Technical Colleges • Data Structure • College-Level Applications • Student Demographics • Minority Populations • Marketing • Q & A
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
Washington State Socioeconomic Status Quintiles 1990 and 2000
State population- more than ever before our future adults are being born and raised in low SES households.
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
Participation for Younger and Older Students by SES Quintiles - 2000
Students socioeconomic differences become even more magnified by colleges, raising the question: “How best can the system support colleges so varied in student body and community make-up?”
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
Data Structure • Relational Database (MS Access) • SBCTC Data Warehouse (student data) • Census Data Tables (population data) • Spatial Data • GIS
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)
DW – Student Data Family status Fund source Ed background Ethnicity Program Intent Census – Population Data Demographic Ed background Ethnicity SES Median household income/ethnicity Employment Database – Examples of Variables
Database – Placing Students in Block Groups DW Address: 234 Main St, Bellingham 98225 Student on Map GIS BG # on Student Record BG# 530730009003
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
Applications: SES of Students attending Washington State Community & Technical Colleges
Applications: Demographics of Students attending Skagit Valley College
1. Where do our students come from?2. How has the SES of our district changed between census dates?
1. What is the median household income of Hispanic students in our district?2. Where are minority groups concentrated within our district? 3. Should we extend our ESL program to a remote location?
Hispanic SVC Students' Household Income Based on Median Household Income Census data for the Hispanic population of the block group.
1. What percent of the population is between 18 and 25 years of age? 2. What is the geographic distribution of the population older than 25 years who have less than an Associate’s Degree? 3. What percent of the district population attends a community or technical college?
Available to WA Community Colleges • Access Database • Statewide Map Images • Provided as *.kml files by SBCTC • Maps can be displayed on Google Earth • Free software (upgrade options for additional $$) at http://earth.google.com • SBCTC has ArcGIS software available
Thanks for joining us… • Questions??