Doctoral Students in Applied Measurement and Research Methods

Greg Applegate has previous experience being a computer technician/instructor and a high school teacher. His primary research interests include test validity and reliability, differential item functioning, and general measurement issues. He is particularly interested in improving the fairness, accuracy, and efficiency of educational measurement. 

Danny Breidenbach comes to educational measurement by way of mathematics education. He is a former teacher and teacher educator. He is interested in multiple aspects of validity, most notably DIF detection by way of logistic regression and construct validity by way of confirmatory factor analysis.

Brent Drake is studying a joint specialization in Applied Measurement and Research Methods and Motivation Theory. Research interests include educational and psychological measurement, test score reliability and validity, multi-method research methods, motivation, and adaptive classroom environments.

Tao (Tom) Hong has research interests include test validity, differential item functioning, measurement invariance, and structural equation modeling.

Jia B Lu has research interests in educational measurement and student success secondary level.

Soo Jin Park has research interests in applied measurement for special populations. In detail, she is interested in applying various psychometric methods (1) to assess the students' cognitive characteristics and deficits (2) to evaluate and analysis of the programs and strategies for student's academic improvement. For more information, see her webpage http://web.ics.purdue.edu/~park46

Lai Kwan Pei (Candy) has research interests in item response theory, structural equation modeling, multivariate statistical analysis and differential item functioning. She received a bachelor’s degree and masters’ degree in statistics from the Hong Kong University of Science and Technology. She is working as a lab consultant in the Purdue University Psychometric Instruction / Investigation Laboratory.

Ningying Wu has research interests in differential item functioning and multidimensionality. She also is pursuing a Master’s degree in statistics. She is working as a lab consultant in the Purdue University Psychometric Instruction / Investigation Laboratory.

Recent Graduates in Applied Measurement and Research Methods

Jin Eun Yoo, Ph.D. is a Psychometrician/Research Scientist with Pearson Educational Measurement.

Jason Immekus, Ph.D. completed post-doctoral work as a Research Associate in the Center for Health Statistics, at the University of Illinois Chicago under the direction of Dr. R.D. Bock and Dr. Robert Gibbons. Jason  is an Assistant Professor in the Department of Educational Research & Administration, Kremen School of Education & Human Development at California State University, Fresno.