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Stephen Dunbar

Professor

Current Positions

  • Professor of Educational Measurement and Statistics

College of Education Affiliations

Education

  • BA in English, University of Wisconsin - Madison
  • AM in Applied Linguistics/ESL, University of Illinois at Urbana-Champaign
  • PhD in Educational Psychology, University of Illinois at Urbana-Champaign

Professional Memberships

  • National Council on Measurement in Education
  • Iowa Educational Research and Evaluation Association
  • American Educational Research Association

Selected Publications

  • Dunbar, S. B., Welch, C. J., Hoover, H. D. & Frisbie, D. A. (2013). Iowa Assessments, Form F, Level 05/6. Chicago, IL: Riverside Publishing.
  • Dunbar, S. B., Welch, C. J., Hoover, H. D. & Frisbie, D. A. (2013). Iowa Assessments, Form F, Level 05/6, Directions for Administration. Chicago, IL: Riverside Publishing.
  • Dunbar, S. B., Welch, C. J., Hoover, H. D. & Frisbie, D. A. (2013). Iowa Assessments, Form F, Level 08, Directions for Administration. Chicago, IL: Riverside Publishing.
  • Dunbar, S. B., Welch, C. J., Hoover, H. D. & Frisbie, D. A. (2013). Iowa Assessments, Form F, Level 07, Directions for Administration. Chicago, IL: Riverside Publishing.
  • Dunbar, S. B., Welch, C. J., Hoover, H. D. & Frisbie, D. A. (2013). Iowa Assessments, Form F, Level 10. Chicago, IL: Riverside Publishing.
  • Dunbar, S. B., Welch, C. J., Hoover, H. D. & Frisbie, D. A. (2013). Iowa Assessments, Form F, Level 11. Chicago, IL: Riverside Publishing.
  • Dunbar, S. B., Welch, C. J., Hoover, H. D. & Frisbie, D. A. (2013). Iowa Assessments, Form F, Level 08. Chicago, IL: Riverside Publishing.
  • Dunbar, S. B., Welch, C. J., Hoover, H. D. & Frisbie, D. A. (2013). Iowa Assessments, Form F, Level 13. Chicago, IL: Riverside Publishing.
  • Dunbar, S. B., Welch, C. J., Hoover, H. D. & Frisbie, D. A. (2013). Iowa Assessments, Form F, Level 09. Chicago, IL: Riverside Publishing.
  • Dunbar, S. B., Welch, C. J., Hoover, H. D. & Frisbie, D. A. (2013). Iowa Assessments, Form F, Level 07. Chicago, IL: Riverside Publishing.

Selected Presentations

  • Dunbar, S. B., Fina, A. & Ansley, T. N. (2014, April) Understanding Growth and College Readiness with a Growth Mixture Model. Paper presented at Annual Conference of the National Council on Measurement in Education, Philadelphia, Pennsylvania.
  • Welch, C. J. & Dunbar, S. B. (2013, April) Tracking Growth Towards Readiness: A State's Perspective. Symposium presented at Annual Meeting of the National Council on Measurement in Education, San Francisco.
  • Dunbar, S. B., Cunningham, P. & Welch, C. J. (2013, April) Value-added analysis of teacher effectiveness using three different growth metrics. presented at Annual Meeting of the American Education Research Association, San Francisco.
  • Welch, C. J., Kapoor, S., Tudor, J. & Dunbar, S. B. (2012, April) Mapping the NAEP Performance Levels onto the Standard Score Scale of the Iowa Assessment.. Poster presented at Annual meeting of the National Council on Measurement in Education, Vancouver.
  • Welch, C. J., Tudor, J., Dunbar, S. B. & Kapoor, S. (2011, December) Mapping the NAEP Performance Levels onto the Standard Score Scale of Iowa Assessments. Poster presented at Iowa Educational Research and Evaluation Association Annual Meeting, Ames, Iowa.
  • Welch, C. J., Dunbar, S. B. & FIna, A. (2011, December) College-Readiness on the Iowa Assessments: Do Gender Differences Exist?. Poster presented at Iowa Educational Research and Evaluation Association Annual Meeting, Ames, Iowa.
  • Welch, C. J. & Dunbar, S. B. (2009, December) Balanced Assessment at the Core. presented at 2009 Iowa Educational Research and Evaluation Association Annual Conference, Ames, Iowa.
  • Swartz, R., Welch, C. J. & Dunbar, S. B. (2009, June) A next generation of automated scoring: product definition and usability for K-12 applications. Symposium presented at Association of Test Publishers, Palm Springs.

Selected Grants & Contracts

  • Dunbar, Stephen B (Principal Investigator), Ho, Andrew D (Co-Investigator) Grant Research/Creative Work (Applied or Basic). Evaluating the Impact Score Scale on the Measurement of Individual Student Growth. Institute for Education Sciences. Funded. August 1, 2007 - December 1, 2010.
  • Dunbar, Stephen B (Principal Investigator) Computer-based instructional modules for undergraduate training in applied statistics. Computer-based Education Committee, The University of Iowa. Funded. October 1, 1986.