Cognitive diagnostic models are a psychometric paradigm for designing and scoring tests with the goal of providing a profile of examinee skill mastery rather than just an overall test score. CDMS are an area of psychometric research that has seen substantial growth in the past decade, though the mathematics behind them, dating back to MacReady […]
What is a rubric? It’s a rule for converting unstructured responses on an assessment, such as essays that students write, into structured data that we can use psychometrically. Why do we need rubrics? Measurement is a quantitative endeavor. In psychometrics, we are trying to measure things like knowledge, achievement, aptitude, or skills. So we need […]
Today I read an article in The Industrial-Organizational Psychologist (the colloquial journal published by the Society for Industrial Organizational Psychology) that really resonated with me. Has Industrial-Organizational Psychology Lost Its Way? -Deniz S. Ones, Robert B. Kaiser, Tomas Chamorro-Premuzic, Cicek Svensson Why? Because I think a lot of the points they are making are also true […]
Test fraud is an extremely common occurrence. We’ve all seen articles about examinee cheating. However, there are very few defensible tools to help detect it. I once saw a webinar from an online testing provider that proudly touted their reports on test security… but it turned out that all they provided was a simple export […]
