This tutorial addresses possible sources of confusion in interpreting trait scores from the bifactor model. The bifactor model may be used when subscores are desired, either for formative feedback on an achievement test or for theoretically different constructs on a psychological test. The bifactor model is often chosen because it requires fewer…

Nancy N. Heilbronner, the associate dean for academic affairs at Mercy College in Dobbs Ferry, New York, lectures internationally on topics related to gifted and science education. In this article she writes that we have not fully come to terms with two influential factors that will likely impact future STEM outcomes across the planet: (1) changes…

Describes a study that investigated the relationship between student self-beliefs and science achievement using data from the Third International Mathematics and Science Study (TIMSS), and examined the generalizability of previous findings for students in a cross-cultural context. Results indicate self-beliefs were associated with higher science…