Types of Validity and Reliability, and Measurement Theory and the History of Psychometrics

In this short video, Ayden Scheim, PhD delivers a high level overview of types of validity and reliability, along with a brief summary of measurement theory and the history of psychometrics. He discusses factor analysis: both exploratory (EFA) and confirmatory (CFA). He uses the Intersectional Discrimination Index (InDI) as an example. Read the latest paper on the InDI, on which Dr. Scheim is a co-author: Scheim AI, Courts KA, Vader D, Del Río-González AM, Bauer GR, Dale SK, Poteat T, Bolden R, Earnshaw VA, Bastos JL. The Intersectional Discrimination Index - Revised: Refinement and further psychometric assessment. Soc Sci Med. 2026 Nov;409:119867. doi: 10.1016/j.socscimed.2026.119867. Epub 2026 Sep 22. PMID: 42784851. Find out more about this training, or purchase access to streaming the entire training on www.intersectionalitytraining.com