Our Research

Advancing psychometric methods in education and psychology

Cognitive Diagnosis Models

Developing and applying CDM frameworks to provide fine-grained diagnostic information — spanning model development, statistical procedures, and applications in education and health sciences.

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Item Response Theory

Advancing IRT methodologies and applications to improve the design, implementation, and interpretation of assessments across traditional and interactive platforms.

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Machine Learning & AI

Applying machine learning and artificial intelligence techniques to enhance measurement practices in education and psychology.

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Scale Development & Validation

Developing and validating surveys, questionnaires, and scales with rigorous psychometric methods to ensure reliable and valid score interpretations across diverse populations.

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Software Development

Creating and maintaining open-source software packages, including the GDINA R package, to support psychometric research and practice.

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