Rate My Professor Gary Skaggs

At Virginia Tech's Educational Research and Evaluation Program, Skaggs advanced to full professor in 2019, taught undergraduate and graduate courses in psychometrics, educational statistics, and measurement, directed master's and Ph.D. students, and served on more than 50 graduate committees. His research centers on psychometrics, including standard setting, test equating, differential item functioning, and applications to cognitive diagnostic models in large-scale educational testing. As principal or co-principal investigator, he secured grants from the U.S. Department of Agriculture (2008–2011), National Science Foundation (2011–2013), and U.S. Department of Justice (2015–2019). Skaggs authored the textbook Test Development and Validation (Sage Publishing, 2022) and more than 50 peer-reviewed journal articles and book chapters, including "Diagnostic profiles: A standard setting method for use with a cognitive diagnostic model" (Journal of Educational Measurement, 2016), "Estimating an observed score distribution from a cognitive diagnostic model" (Applied Psychological Measurement, 2017), and "Using diagnostic profiles to describe borderline performance in standard setting" (Educational Measurement: Issues and Practice, 2020). He received the Bradley Hanson Award for Contributions to Educational Measurement from the National Council on Measurement in Education in 2005 and the Jerome Niles Dean’s Faculty Research Award from Virginia Tech in 2009. Skaggs served on editorial boards for Applied Measurement in Education (2005–2022) and Educational Measurement: Issues and Practice (2006–2009) and held leadership roles in professional organizations.