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P. Cristian Gugiu

Assistant Professor, Department of Educational Studies

Program Area: Quantitative Research, Evaluation and Measurement

(614) 292-4229
gugiu.2@osu.edu

Biography

Dr. Cristian Gugiu is an assistant professor in the Quantitative Research, Evaluation and Measurement program in the Department of Educational Studies. He received his training in psychometrics, statistics and evaluation.

Broadly speaking, he is interested in investigating the reliability and validity of research and evaluative conclusions. At times, this has meant focusing on the degree to which a study design constrains causal claims. However, the majority of his research focuses on survey development and validation and the investigation of appropriate methods for handling ordinal data. These foci have led him to specialize in Rasch modeling, factor analysis, confirmatory factor analysis, and structural equation modeling. Additionally, Dr. Gugiu has developed several quantitative methods in the areas of summative confidence, exploratory within a confirmatory factor analysis (E/CFA), bootstrap reliability, and minimum reliability standards.

Dr. Gugiu hosts the Methodological Colloquium sponsored by the Quantitative Research, Evaluation, and Measurement (QREM) program in the Department of Educational studies. This forum brings together graduate students, faculty and outside experts to discuss cutting edge methodologies used in research.

Education

  • PhD, Interdisciplinary Evaluation, Western Michigan University, 2011
  • MA, Clinical and Community Psychology, University of Illinois at Urbana-Champaign, 1999
  • BA, Psychology, University of Michigan at Ann Arbor, 1995

Research Summary

Dr. Gugiu specializes in the development and validation of psychometric methods (with an emphasis on ordinal data, factor analysis, reliability, and confidence intervals), survey instruments, and guidelines for evaluating evidence-based practices. He is a well-known evaluator with more than 20 years of professional experience conducting interdisciplinary program evaluations in the fields of education, child welfare, medicine, and mental health.

Selected Presentations

  • Gugiu, P.C. (2016, November). The Pitfalls of Creating Composite Variables from Survey Items Measured with an Ordinal Scale. Invited keynote presented to the Quantitative Topical Interest Group at the 2016 American Evaluation Association conference in Atlanta, Georgia.
  • Gugiu, M.R. & Gugiu, P.C. (2016, November). Measuring Socioeconomic Status. Expert lecture presented at the 2016 American Evaluation Association conference in Atlanta, Georgia.
  • Gugiu, P.C. (2015, November). A Multivariate Multilevel Model for Performing Value-Added Modeling. Expert lecture presented at the 2015 American Evaluation Association conference in Chicago, Illinois.
  • Gugiu, P.C., Gugiu, M.R., Sanders, M., & Barnes, M. (2015, November). Integrating Rasch Scores within a Structural Equation Modeling Framework. Paper presented at the 2015 American Evaluation Association conference in Chicago, Illinois.
  • Gugiu, M.R., Gugiu, P.C., Altschuld, J., & Lee, Y.F. (2015, November). Utilizing Rasch Modeling to Assess Needs. Expert lecture presented at the 2015 American Evaluation Association conference in Chicago, Illinois.
  • Gugiu, M.R, Gugiu, P.C., Barnes, M., & Sanders, M. (2015, November). Using Rasch Modeling for Survey Development and Validation. Paper presented at the 2015 American Evaluation Association conference in Chicago, Illinois.
  • Gugiu, P.C. (2014, October). Survey Validation. Paper presented at the American Evaluation Association in Denver, Colorado.
  • Gugiu, P.C. & Gallant, D. (2013, October). A Demonstration of Rasch Modeling using Winsteps. Expert demonstration presented at the American Evaluation Association in Washington, D.C.
  • Gugiu, M.R. & Gugiu, P.C. (2013, October). Using Rasch Analysis to Measure Trends in Corruption in the European Union. Paper presented at the American Evaluation Association in Washington, D.C.
  • Gugiu, P.C. (2012, October). A Gentle Introduction to Nonparametric Confidence Intervals. Expert lecture to be presented at the 2012 American Evaluation Association conference in Minneapolis, Minnesota.
  • Gugiu, P.C. (2012, October). Summative Confidence: A Quantitative Method for Assessing the Quality of a Summative Evaluation. Expert lecture to be presented at the 2012 American Evaluation Association conference in Minneapolis, Minnesota.
  • Gugiu, P.C. (2011, November). Exploratory Factor Analysis within a Confirmatory Factor Analysis Framework (E/CFA). Expert lecture presented at the 2011 American Evaluation Association conference in Anaheim, California.
  • Gugiu, C. (2009, November). Evidence-Based Medicine: Cutting-edge Research or Bad Science? Expert lecture presented at the 2009 American Evaluation Association conference in Orlando, Florida.
  • Gugiu, P.C. (2009, November). Estimating the Precision of an Evaluative Conclusion. Workshop presented at the 2009 American Evaluation Association conference in Orlando, Florida.
  • Gugiu, P.C. (2008, November). Summative Confidence: The Mathematical Algorithm. Expert lecture presented at the 2008 American Evaluation Association conference in Denver, Colorado.
  • Gugiu, P.C. (2007, November). Summative Confidence: How Precise are Your Evaluative Conclusions? Expert lecture presented at the 2007 American Evaluation Association conference in Baltimore, Maryland.

Selected Publications

  • Gugiu, P.C. & Gugiu, M.R. (2017) Determining the Minimum Reliability Standard Based upon a Decision Criterion. Journal of Experimental Education.
  • Gugiu, M.R. & Gugiu, P.C. (2016) Economic Crisis and Corruption in the European Union. Journal of Methods and Measurement in the Social Sciences, 7(1), 1-23.
  • Persch, A.C., Gugiu, P.C., Onate, J.A., & Cleary, D.S. (2015). Development and Psychometric Evaluation of the Vocational Fit Assessment (VFA). The American Journal of Occupational Therapy, 69(6), 1-8.
  • Sanders, M., Gugiu, P.C., & Enciso, P. (2015). How Good are Our Measures? Investigating the Appropriate Use of Factor Analysis within an Evaluation Context. Journal of Multidisciplinary Evaluation, 11(25), 22-35.
  • Persch, A., Gugiu, P.C., Velozo, C., Page, S. (2015). Rasch Analysis of the Wrist and Hand Fugl-Meyer: Dimensionality and Item-Level Characteristics. Journal of Neurologic Physical Therapy, 39, 185-192.
  • Gugiu, P.C. (2015). Hierarchy of evidence and appraisal of limitations (HEAL) grading system. Evaluation & Program Planning, 48(1), 149-159.
  • Dembe, A.E., Lynch, M.S., Gugiu, P.C., & Jackson, R.D. (2014) The Translational Research Impact Scale: Development, Construct Validity, and Reliability Testing. Evaluation & the Health Professions, 37(1), 50-70.
  • Gugiu, M.R. & Gugiu, P.C. (2013) Utilizing Item Analysis to Improve the Evaluation of Student Performance. Journal of Political Science Education.
  • Gugiu, P.C., Westine, C.D., Coryn, C.L.S. & Hobson, K.A. (forthcoming). An Application of a New Evidence Grading System to Research on the Chronic Care Model. Evaluation & the Health Professions.
  • Gugiu, C. (2012). The Logic of Summative Confidence. In R. B. Bausell (Ed.), Health Evaluation. (Reprinted from Journal of Multidisciplinary Evaluation, 4(8), 1-15, 2007), SAGE Publications.
  • Gugiu, P.C. & Gugiu, M.R. (2011). Levels of Evidence: A Response to Berger and Knoll. Evaluation & the Health Professions, 34(1), 127-130.
  • Huber, D.M., Sauer, E.M., Mrdjenovich, A.J., & Gugiu, C. (2010). Contributions to Advisee Working Alliance: Attachment, Frequency of Meetings, and Pairings. Training and Education in Professional Psychology, 4(4), 244-253.
  • Gugiu, P.C. & Gugiu, M.R. (2010). A Critical Appraisal of Standard Guidelines for Grading Levels of Evidence. Evaluation & the Health Professions, 33(3), 233-255.
  • Davey, J., Gugiu, P.C., & Coryn, C.L.S. (2010) Quantitative Methods for Determining the Reliability of Qualitative Data. Journal of Multidisciplinary Evaluation, 6(13),140-162.
  • Gugiu, P.C., Coryn, C.L.S., & Applegate, E.B. (2010). Structure and Measurement Properties of the Patient Assessment of Chronic Illness Care (PACIC) Instrument. Journal of Evaluation in Clinical Practice, 16(3), 509-516.
  • Gugiu, P.C., Coryn, C.L.S., Clark, R., & Kuehn, A. (2009). Development of the Short-version of the Patient Assessment of Chronic Illness Care (PACIC) Instrument. Chronic Illness, 5(4), 268-276.
  • Coryn, C.L.S., Gugiu, P.C., Davidson, E.J., & Schröter, D.C. (2008). Assessing Needs in Hidden Populations Using Respondent-driven Sampling. Evaluation Journal of Australasia, 7(2), 3-11.
  • Gugiu, C. (2007). The logic of Summative Confidence. Journal of Multidisciplinary Evaluation, 4(8), 1-15.
  • Gugiu, P.C. & Rodríguez-Campos, L. (2007). Semi-structured Interview Protocol for Constructing Logic Models. Evaluation and Program Planning, 30(4), 339-350.
  • Florea, N. & Gugiu, P.C. (2004). Organizarea Universitar în America. [The Organization of Universities in America]. Tribuna înv mântului, 750 (2631).
  • Gugiu, P.C. (2004). Evaluation in Eastern Europe and the Middle East. Journal of Multidisciplinary Evaluation, 1(1), 81-88.