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Sidou, Lais Feltrin; Borges, Endler Marcel – Journal of Chemical Education, 2020
Principal component analysis (PCA) is one of the most important and powerful methods in chemometrics as well as in a wealth of other areas. Running a PCA results in two main elements, the score plot and the loading plot; the score plot provides the location of the samples, and the loading plot indicates correlations among variables, the trends in…
Descriptors: Factor Analysis, Chemistry, Science Instruction, Teaching Methods
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Johansen, Justin; Wiley, David – Educational Technology Research and Development, 2011
The purposes of this study were to (a) determine the cost of converting BYU Independent Study's e-learning courses into OpenCourseWare, (b) assess the impact of opening those courses on paid enrollment in the credit-bearing versions of the courses, and (c) use these data to judge whether or not an OpenCourseWare program could be financially…
Descriptors: Electronic Learning, Independent Study, Distance Education, Sustainability
International Association for Development of the Information Society, 2012
The IADIS CELDA 2012 Conference intention was to address the main issues concerned with evolving learning processes and supporting pedagogies and applications in the digital age. There had been advances in both cognitive psychology and computing that have affected the educational arena. The convergence of these two disciplines is increasing at a…
Descriptors: Academic Achievement, Academic Persistence, Academic Support Services, Access to Computers