Loyola University Chicago

School of Education

Faculty and Staff Directory

Fujimoto, Ken A.

Title/s:  Assistant Professor

Specialty Area: Nonparametric Item Response Theory; Bayesian Nonparametric Data Analysis; Educational and Psychological Test Design; Multilevel Data Analysis

Office #:  Lewis Towers 1037, WTC

Phone: 312.915.6682


CV Link: Fujimoto CV


One area of my research involves developing novel Bayesian nonparametric item response theory (IRT) models to more effectively examine the quality of educational and psychological test data. These models identify and control for when test items function differently across latent subgroups of persons (i.e., differential item functioning) and when correlated method effects are present in the data. Another aspect of my research focuses on evaluating and refining rating instruments that measure the quality of daycare centers and mental health-related constructs.


  • Ph.D., University of Illinois at Chicago, Chicago, IL

Program Areas

  • Research Methodology

Research Interests

  • Nonparametric Item Response Theory
  • Bayesian Nonparametric Data Analysis
  • Educational and Psychological Test Design
  • Multilevel Data Analysis

Courses Taught

  • RMTD 404 Introduction to Educational Statistics
  • RMTD 482 Introduction to Linear Models

Selected Publications

  • Fujimoto, K. A. & Hwang, W.-C. (2014). Acculturative family distancing: Psychometric analysis with the extended two-tier IRT. Psychological Assessment, 26(2), 493-512.
  • Fujimoto, K. A. & Karabatsos, G. (2014). Dependent Dirichlet process rating model. Applied Psychological Measurement, 38(3), 217–228.