[Monographs, research reports, and hard-to-find publications]

Below are links to my hard-to-reach papers; each can download a copy. You can find a full list of my papers at [PUBLICATIONS & SCHOLARLY ACTIVITY] 

  • Zumbo, B.D., Sawatzky, R., & Ratner, P. A. (2026). Brief Overview of Kane’s Argument-Based Approach To Measurement Validation: Situated Within the Evaluation of Mixture Computerized Adaptive Test for Measuring Patient-reported Outcomes. UBC Psychometric Research Initiative, University of British Columbia. URL: REPRINT

Note:  Patient‑Reported Outcome Measures (PROMs) are standardized, validated tools that patients complete to share information about their health status in areas that affect their quality of life, such as symptoms, functional ability, and physical, mental, and social well‑being. See the Canadian Institute for Health Information (CIHI) to learn more about Patient‑Reported Outcome Measures (PROMs). 

  • Zumbo, B.D. (2023). Test Validation and Bayesian Statistical Frameworks To Estimate the Magnitude and Corresponding Uncertainty of Washback Effects of Test Preparation. UBC Psychometric Research Series, University of British Columbia. DOI: https://dx.doi.org/10.14288/1.0435197

  • Zumbo, B. D. (2021). A Novel Multimethod Approach to Investigate Whether Tests Delivered at a Test Centre are Concordant with those Delivered Remotely Online. URL at the UBC Library, DOI: http://dx.doi.org/10.14288/1.0400581

  • Zumbo, B.D. (2020). On Computational Psychometrics as a Validity Framework for Process Data (Featured Session). Presented at the Annual Meeting of the National Council for Measurement in Education (NCME), San Francisco, CA. [Online Virtual Conference]. [For a PDF copy click here]

    Stone, J., & Zumbo, B.D. (2016). Validity as a Pragmatist Project: A Global Concern with Local Application. In Vahid Aryadoust, and Janna Fox (Eds.), Trends in Language Assessment Research and Practice (pp. 555-573). Newcastle: Cambridge Scholars Publishing.  [For a PDF copy click here]
  • Zumbo, B. D., & Forer, B. (2011). Testing and Measurement from a Multilevel View: Psychometrics and Validation. In James A. Bovaird, Kurt F. Geisinger, & Chad W. Buckendahl (Editors).  High Stakes Testing in Education – Science and Practice in K-12 Settings, (pp.177-190).  American Psychological Association Press, Washington, D.C.   [For a PDF copy click here]

  • Zumbo, B. D. (2009). Validity as Contextualized and Pragmatic Explanation, and Its Implications for Validation Practice. In Robert W. Lissitz (Ed.) The Concept of Validity: Revisions, New Directions and Applications, (pp. 65-82). IAP – Information Age Publishing, Inc.: Charlotte, NC. [For a PDF copy click here]

    Zumbo, B.D. (2008).  Statistical Methods for Investigating Item Bias in Self-Report Measures, [The University of Florence Lectures on Differential Item Functioning].  Universita degli Studi di Firenze, Florence, Italy.  [For a PDF copy click here]   

  • Zumbo, B. D., & Rupp, A. A. (2004). Responsible Modeling of Measurement Data For Appropriate Inferences: Important Advances in Reliability and Validity Theory. In David Kaplan (Ed.), The SAGE Handbook of Quantitative Methodology for the Social Sciences (pp. 73-92). Thousand Oak s, CA: Sage Press.  [For a PDF copy click here]

  • Slocum, S. L., Gelin, M. N., & Zumbo, B. D. (2004). Statistical and Graphical Modeling to Investigate Differential Item Functioning for Rating Scale and Likert Item Formats. Vancouver: Edgeworth Laboratory, University of British Columbia. [For a PDF copy click here]
  • Rupp, A. A., & Zumbo, B. D. (2003). Which Model is Best? Robustness Properties to Justify Model Choice among Unidimensional IRT Models under Item Parameter Drift. Alberta Journal of Educational Research, 49, 264-276. [For a PDF copy click here]
  • Zumbo, B. D. (1999) A Handbook on the Theory and Methods of Differential Item Functioning (DIF): Logistic Regression Modeling as a Unitary Framework for Binary and Likert-type (Ordinal) Item Scores. Ottawa ON: Directorate of Human Resources Research and Evaluation, Department of National Defense.  [For a PDF copy click here]
      • This provides a link to download a compressed ZIP file with all the SPSS syntax files and the example data sets; click DIF to download the compressed file.

  • Zumbo, B. D. (1997). The Best Teachers I Ever Had Were … Bill Rozeboom and Donald Zimmerman. Teaching Business Ethics, 1, 231-234.  [For a PDF copy click here]