I was, am, and always will be curious about what happens when mind meets technology. Passion guided my path as a scholar, software developer, teacher, advisor, and life-long learner. Trained as an engineer, I gained deep knowledge into the business field and achieved a better understanding of how people learn. I explore research design and methods and build web applications. The exploration of ideas brings me joy and I will never cease to pursue it.
Ioan Gelu Ionas MBA, PhD

Design & Development

Computers don't make errors. What they do, they do on purpose. (Murphy's Laws)
A web application for the design and delivery of Real-Time-Response studies. SENTANA is brining the power of real-time-response studies to the web, away from the artificial environment of the lab.


My Research Lab

A research methods and data analysis book for quantitative studies. A research design management tools. A perpetually developed resource.

A web-based educational and research tool for numerical assessment of structural knowledge using constrained and unconstrained concept maps.



The essence about teaching is, having it, to apply it; not having it, to confess to your ignorance. (Confucius)

Introduction to Applied Statistics (graduate), College of Education, Department of Educational, School & Counseling Psychology, University of Missouri Columbia, 2020-present

Foundations of Educational & Psychological Measurement (graduate), College of Education, Department of Educational, School & Counseling Psychology, University of Missouri Columbia, 2022-present

Research Capstone - Education (graduate, dissertation advising), Walden University, College of Education, 2011-present

Research Foundations Courses (graduate, dissertation preparatory courses), Walden University, College of Education, EDD and PhD programs in education, 2021-present



The road to success is always under construction. (Murphy's Laws)

Causality & causal reasoning

Causality is pervasive and ubiquitous. It helps build intellectual understanding, supports deliberations, is involved in planning, in technology, and even in language. It is part of everyday decisions, requiring implications and consequences to be considered in the process of evaluation and judgment. Causality is also a construct of intelligence. Its understanding is critical to cognition and learning. I am working towards understanding how we can help people reason and learn in causal contexts.

Online, Web-Based Real-Time-Response (RTR) Measurement

RTR is a research method used to collect continuous response judgments or evaluations during media exposure. Traditional RTR tools use expensive, specialized equipment to capture participant responses in laboratory settings. Today’s computer technologies offer capabilities that could potentially enable the widespread use of this research method through the web, reaching subjects in the real-world conditions. And while technologies already exist, I found that there is a need to study how well these technologies can match the results obtained using specialized data collection equipment. The SENTANA application is based on this line of research.



Any simple theory will be worded in the most complicated ways. (Murphy's Laws)

Ionas, I.G. & Geana, M.V. (2021). graphed: A Web-Based Concept Mapping Application for Instruction and Research. Proceedings of the 7th International Conference on Higher Education (HEAd'21), Universitat Politecnic de Valencia, Valencia, 2021, DOI: http://dx.doi.org/10.4995/HEAd21.2021.12911.

Easter, M.A. and Ionas, I.G. (2016). The design and development of an online tool to strategically support knowledge acquisition for improved educator practice. Int. J. Innovation in Education, Vol 3, Nos. 2/3, pp. 122-135.

Ionas, I.G., Easter, M.A., Miller, W., & Neumeyer, G. (2012). Using Open-Source Tools to Design and Develop the Online Component of a Blended-Learning, Instructor-Led Course. International Journal of Designs for Learning, 3(1), p. 12-26.

Ionas, I.G., Cernusca, D. & Collier, H.L. (2012). Prior knowledge influence on self-explanation effectiveness when solving problems: An exploratory study in science learning. The International Journal of Teaching and Learning in Higher Education, 24(3), p. 349-358

Schmidt, M., Easter, M., Jonassen, D. H., Miller, W., & Ionas, I. G. (2008). Preparing the twenty-first century workforce: the case of curriculum change in radiation protection education in the United States. Journal of Vocational Education & Training, 60(4),p. 423-439.

Jonassen, D. H., & Ionas, I. G. (2008). Designing effective supports for causal reasoning. Educational Technologies Research and Development, 56, p. 287-308.

Johannes, M.J. Strobel, David H. Jonassen, Ioan Gelu Ionas (2007). The evolution of a collaborative authoring system for non-linear hypertext: A design-based research study. Computers & Education, 51(1), p. 67-85.