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Dimiter Dimitrov

PhD, Southern Illinois University
Professor
Data Use and Analysis Lab
Research Methodology

Contact Information

Send email to Dr. Dimitrov

Phone: (703) 993-3842
Fax: (703) 993-3678

George Mason University, Fairfax Campus
West Building 2007
4400 University Dr.
MS 6D2
Fairfax, VA 22030

Profile

Dimiter M. Dimitrov is a Professor of Educational Measurement and Statistics in the Graduate School of Education, where he teaches courses in Advanced Quantitative Research, Modern Measurement, Structural Equation Modeling, and Validation of Assessment Scales. For the past 17 years of his teaching experience at George Mason University and his previous institution, Kent State University, Dr. Dimitrov has taught graduate courses in Multivariate Statistics, Quantitative Research Methods, Measurement (Classical and Item Response Theory), Generalizability Theory, Structural Equation Modeling, and Validation of Assessment Scales.

Dr. Dimiter Dimitrov received his bachelors degree in mathematics from the University of Sofia "Kl. Ohridski", Bulgaria. He is a dual Ph.D. - in 1984 he received his (first) Ph.D. in Mathematics Education from the University of Sofia, Bulgaria, and in 1995 he received a Ph.D. in Educational Measurement and Statistics from the Department of Educational Psychology in Southern Illinois University at Carbondale, USA.

Dr. Dimiter Dimitrov received his bachelors degree in mathematics from the University of Sofia "Kl. Ohridski", Bulgaria. He is a dual Ph.D. - in 1984 he received his (first) Ph.D. in Mathematics Education from the University of Sofia, Bulgaria, and in 1995 he received a Ph.D. in Educational Measurement and Statistics from the Department of Educational Psychology in Southern Illinois University at Carbondale, USA.

Dr. Dimiter Dimitrov received his bachelors degree in mathematics from the University of Sofia "Kl. Ohridski", Bulgaria. He is a dual Ph.D. - in 1984 he received his (first) Ph.D. in Mathematics Education from the University of Sofia, Bulgaria, and in 1995 he received a Ph.D. in Educational Measurement and Statistics from the Department of Educational Psychology in Southern Illinois University at Carbondale, USA.

Research Interests

Dr. Dimitrovs current research interests include:

  • Theoretical and methodological issues of reliability and validity of measurements
  • Cognitive diagnosis modeling using psychometric methods
  • Research in education using multivariate methods, hierarchical linear modeling, and latent trait modeling 

Recent Publications

  • Raykov, T., Dimitrov, D. M., Von Eye, A., & Marcoulides, G. A. (2012). Interrater agreement evaluation: A latent variable modeling approach. Educational and Psychological Measurement. DOI: 10.1177/0013164412449016.
  • Dimitrov, D. M. (2012). Statistical Methods for Validation of Assessment Scale Data in Counseling and Related Fields. Alexandria, VA: American Counseling Association.
  • Dimitrov, D. M., & Atanasov, D. V. (2012). Conjunctive and disjunctive extensions of the least squares distance model of cognitive diagnosis. Educational and Psychological Measurement, 72(1), 120-138.
  • Dimitrov, D. M. (2010). Testing for factorial invariance in the context of construct validationMeasurement and Evaluation in Counseling and Development, 43(2), 121-149.
  • Raykov, T., Dimitrov, D. M., & Asparouhov, T. (2010). Evaluation of scale reliability with binary measures using latent variable modeling. Structural Equation Modeling, 17, 265-279.
  • Dimitrov, D. M. (2008) Quantitative Research in Education: Intermediate & Advanced Methods. Oceanside, NY: Whittier Publications.
  • Dimitrov, D. M. (2007). Least squares distance method of cognitive validation and analysis for binary items using their item response theory parameters. Applied Psychological Measurement, 31(5), 367-387.
  • Thomas, C. L., & Dimitrov, D. M. (2007). Effects of teen pregnancy prevention program on teens attitudes toward sexuality: A latent trait modeling approach. Developmental Psychology, 43(1), 173-185.
  • Dimitrov, D.M., & Smith, R.M. (2006). Adjusted Rasch person-fit statistics. Journal of Applied Measurement, 7(2), 170-183.(PDF)
  • Dimitrov, D.M.(2006). Comparing groups on latent variables: A structural equation modeling approach. WORK: A Journal of Prevention, Assessment, & Rehabilitation, 26(4) (PDF)
  • Dimitrov, D.M. (2007). Reliability. In Erford, B.T. (Ed), Assessment for Counselors. Boston: Houghton-Mifflin/Lahaska Press (pp. 99-122).(PDF)
  • Dimitrov, D.M. & Rumrill, Phillip D. (2005). Multivariate methods in rehabilitation. WORK: A Journal of Prevention, Assessment, & Rehabilitation, 24, 205-212 (pdf)
  • Dimitrov, D.M. (2003). Marginal true-score measures and reliability of binary items as a function of their IRT parameters. Applied Psychological Measurement, 27(6), 440-458. (pdf)
  • Dimitrov, D.M., & Shelestak, D. (2003) Psychometric analysis of performance on categories of client needs and nursing process with the NLN diagnostic readiness test. Journal of Nursing Measurement,11(3), 207-223. (pdf)
  • Dimitrov, D.M. (2003). Reliability and true-score measures of binary items as a function of their Rasch difficulty parameter. Journal of Applied Measurement, 4(3), 222-233. (pdf)
  • Dimitrov, D.M., & Raykov, T. (2003). Validation of cognitive structures: A structural equation modeling approach. Mutivariate Behavioral Research, 38(1), 1-23. (pdf)
  • Dimitrov, D.M., & Rumrill, P. (2003). Pretest-posttest designs in rehabilitation research. WORK: A Journal of Prevention, Assessment, & Rehabilitation, 20(2), 159-165. (pdf)
  • Dimitrov, D.M. (2002). Reliability: Arguments for multiple perspectives and potential problems with generalization across studies. Educational and Psychological Measurement, 62(5), 783-801. (pdf)
Quantitative Research in EducationStatistical Methods for Validation of Assessment Scale Data in Counseling and Related Fields

Other Information

Dr. Dimitrov is the past Editor of Measurement and Evaluation in Counseling and Development -- the official journal of the Association for Assessment in Counseling and Education (2005-2011). He is a member of the editorial board of other professional journals - Educational and Psychological Measurement, Journal of Applied Measurement, Research in The Schools, and Turkiye Klinikleri BIYOISTATISTIK - International Journal on Biostatistics. Dr. Dimitrov is the Past President of the Mid-Western Educational Research Association (MWERA) and has served as Program Director of the SIG Rasch Measurement of the American Educational Research Association (AERA).