Accurately measuring and modeling academic achievement growth is critical to support educational policy and practice. Using a nationally representative longitudinal data set, this study compared various models of mathematics achievement growth on the basis of both practical utility and optimal statistical fit and explored relationships within and…

Academic achievement indices including GPAs and MCAT scores are used to predict the spectrum of medical student academic performance types. However, use of these measures ignores two changes influencing medical school admissions: student diversity and affirmative action, and an increased focus on communication skills. To determine if GPA and MCAT…

Tests for mean differences on latent constructs using the LISREL approach to multigroup structural-equation modeling were demonstrated for High School and Beyond data concerning the sophomore cohort. Senior year achievement test scores for 3,700 public and 300 Catholic school students were compared after controlling for background and sophomore…