helpful psychometrics resources
- Jonathon Templin's Course Site: Dr. Templeton provides modern teaching materials on a wide variety of psychometric techniques (e.g., cluster analysis, IRT, SEM). One of the most organized and educational psychometric courses on the web
- Lena Hoffman's Course Site: Like Dr. Templeton, Dr. Hoffman offers many applied examples of advanced measurement and multilevel modeling. Her courses are a unique synergy of method and theory. This includes modeling lifelong development, psycholinguistic interactions, and cognitive change. Please consider purchasing her book, "Longitudinal Analysis: Modeling Within-Person Fluctuation and Change"
- Personality Project: The Personality Project is maintained by Dr. Reville. Not only does it provide useful historical and contemporary perspectives on personality research, it also discusses the psych package for R which was designed by Dr. Reville to perform analyses often used in behavioral science (factor analysis, reliability, mediation). Dr. Reville also offers his text on psychometric theory which is rooted in classical test theory (i.e., Nunally), but is applied within the R-environment. An excellent resource for those interested in Industrial and Organizational Psychology who want to improve their experience with R. Finally, you can take many valid personality and interest inventories along with automated feedback.
- Item Response Theory: Referred to as "modern" psychometrics, item response theory is based on establishing a model that specifies the probability of observing each response option to an item as a function of the latent trait being assessed (e.g., knowledge, skill, personality, attitude). It is called item response theory because the focus is on item properties rather than properties of the test as a whole. The attached resource is a free online textbook intended to familiarize individuals with the assumptions, uses, and software for applying IRT.