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Heilbronner, Nancy N. – Global Education Review, 2014
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…
Descriptors: STEM Education, Academic Achievement, Science Achievement, Correlation
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DeMars, Christine E. – International Journal of Testing, 2013
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…
Descriptors: Test Interpretation, Scores, Models, Correlation