A comparison of the sample invariance of item statistics from the classical test model, item response model, and structural equation model: A case study of real response data. (2000) 

University of Ottawa

2. Charles 
Owuor

Implications of using Likert data in multiple regression analysis. (2001)

University of British Columbia

3. Valerie Ruhe

Applying Messick’s framework to the evaluation data of distance/distributed instructional programs. (2002)

University of British 
Columbia 

4. Andre A. Rupp

Investigations of parameter invariance in IRT models: theoretical and practical avenues for understanding a fundamental property of measurement. (2003)

University of British 
Columbia

5. Petronilla Murlita Witarsa

Nonparametric item response modeling for identifying differential item functioning in the moderate-to-small-scale testing context. (2003)

University of British Columbia

6. Kim Koh

Type I error rates for multi-group confirmatory maximum likelihood factor analysis with ordinal and mixed item format data: a methodology for construct comparability. (2003)

University of British 
Columbia

7. Serge G. Demers

Robustness of Hotelling’s T-squared test in the presence of outliers in a related measures setting. (2005)  [Co-supervisor  with Richard Wolfe, OISE]

University of Toronto / OISE 

8. Michaela Gelin

Type I error rates of the DIF MIMIC approach using Joreskog’s covariance matrix with ML and WLS estimation. (2005)

University of British 
Columbia

9. Suzanne Slocum

Assessing unidimensionality of psychological scales: using individual and integrative criteria from factor analysis. (2005)

University of British 
Columbia

10. Sharon G. Barnett

Relative performance of scoring designs for the assessment of constructed responses. (2005)

University of British Columbia

11. Jennifer E.  Lloyd

On modeling change and growth when the measures themselves change across waves: methodological and measurement issues and a novel nonparametric solution. (2006)

University of British Columbia

12. Amery D. Wu

Pratt’s importance measures in factor analysis: a new technique for interpreting oblique factor models. (2008)

University of British 
Columbia 

13. Martin A. Guhn

Examining interactions between social and cultural child and neighborhood characteristics on children’s developmental outcomes: studies from the population-based Early Development Instrument project. (2009) [HDLC, co-supervisor with Prof. Hillel Goelman]

University of British Columbia

14. David W. Nordstokke

Investigating tests for equal variances. (2009)

University of British Columbia

15. Barry A. Forer

Validation of multilevel constructs: methods and empirical findings for the Early Development Instrument. (2009)

University of British Columbia

16. Zhen Li

Impact of differential item functioning on statistical conclusions. (2009)

University of British Columbia

17. Anne M. Gadermann

The Satisfaction with Life Scale adapted for Children: investigating the structural, external, and substantive aspects of construct validity. (2009)

University of British Columbia

18. Cornelia Zeisser

Validating policy ratings: the substantive aspect of construct validity for ratings of school tobacco policies. (2010)

University of British Columbia

19. Asa-Sophia Maglio

Effectiveness of an integrated mindfulness-based anxiety group intervention with university students who self-report anxiety: a small-N, mixed method design. (2011) [Counseling  Psychology, co-supervisor with Prof. Bill Borgen]

University of British Columbia 

20. Yan Liu

Documenting the impact of outliers on decisions about the number of factors in exploratory factor analysis. (2011)

University of British Columbia

21. Tavinder Ark

Ordinal generalizability theory using an underlying latent variable framework. (2015)

University of British Columbia

22. Arwa Alkhalaf

The impact of predictor variable(s) with skewed cell probabilities on the Wald test in binary logistic regression. (2017)

University of British Columbia

23. Oscar Olvera Astivia

On Monte Carlo simulation algorithms for research in psychometrics. (2017)

University of British Columbia

24. Yue (Michelle) Chen 

On the impact of negatively keyed items on the assessment of the unidimensionality of psychological tests and measures. (2017)  

University of British Columbia

25. Pamela R. Woitschach Mendoza

Evaluaciones Educativas A Gran Escala En Latinoamerica: TERCE (2018) trans. Large-Scale Educative Assessments In Latin America: TERCE  (2018)  [Co-supervisor with Prof. Rosario Martinez-Arias, Prof. Ruben Fernandez-Alonso, and Prof. Jose Muniz-Fernandez]

Universidad Complutense
de Madrid, Departamento de PsicobiologIa y Metodologia en Ciencias del Comportamiento, (Spain)

26. Gordana Rajlic

Violations of unidimensionality and local independence in measures intended to be unidimensional: assessing the extent of violations and the accuracy of unidimensional IRT model estimates. (2019)

University of British Columbia

27. Nathan D. Roberson

On the measurement of social belonging and its connection to migration background. (2020)

University of British Columbia

28. Mauricio Coronel Villalobos

Impact of scoring and response format on inferences from electronic surveys for rating scales. (2020)

University of British Columbia

29. Niyati Kasana

30. Sarah Lynch

Unpacking the Grammar of Tests and Measures: The Hidden Complexity in Psychological Test Items and Its Association With Item Responses. (2025)

31. Keren Roded

(ongoing) 

32. Weiran Li (ongoing)

Working title: Consequences of Lower Asymptote Drift 

Statistical modeling and data analysis; causal analysis; Bayesian Methods

University of British Columbia 

University of British Columbia