Classical Test Theory and Music Testing
Classical testing theory, including its origins within psychological measurement, the fundamental principles of true scores and measurement error, psychometrics, and statistical assumptions are the focus of this chapter. Random and systematic forms of measurement error are addressed, and the standard error of measurement is defined. Major approaches to defining and estimating test reliability and validity are reviewed, and practical applications of classical test theory to K-12 music education assessment are considered, including large-scale standardized testing as well as measurement levels, item analysis, and techniques for enhancing the reliability and validity of classroom-level assessments. Finally, the transition from classical test theory to modern test theory is explored.