This unpublished manuscript is a tutorial in the principles and assumptions underlying psychometric methods to quantify or measure psychological phenomena. The validity of claims about learner self-reports depend on the credibility of the measures used. Inventories developed within the psychometric tradition are expected to provide theoretical and empirical evidence for the validity and reliability of the measures to support subsequent interpretations and decisions. These practices depend on a set of assumptions based on latent trait theory that are essential to understanding what psychometric measures can do. This review provides a defense of the potential value of psychometric self-report data in informing the psychology of effective feedback.
Recommended Citation Brown, G. T. L. (2021, November). Principles and assumptions of psychometric measurement. Unpublished Manuscript. The University of Auckland, Auckland, NZ. doi:10.17608/k6.auckland.17057828