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Garvey, Sarah L.; Shahmohammadi, Golbon; McLain, Derek R.; Dietz, Mark L. – Journal of Chemical Education, 2015
A laboratory experiment is described in which students compare two methods for the determination of the calcium content of commercial dietary supplement tablets. In a two-week sequence, the sample tablets are first analyzed via complexometric titration with ethylenediaminetetraacetic acid and then, following ion exchange of the calcium ion present…
Descriptors: Dietetics, Comparative Analysis, Statistical Analysis, Laboratory Experiments
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Malich, John; Kehus, Marcella J. – Journal of Visual Literacy, 2012
In our essay we discuss Louise Rosenblatt's transactional theory of a reading event. Second, we summarize Carole Cox and Joyce Many who applied the transactional theory and designed a 1-5 point continuum to stories and films. Third, we summarize film theorists David Bordwell's constructivism; Richard Wollheim's central imagining and…
Descriptors: Reader Text Relationship, Reader Response, Theories, Constructivism (Learning)
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Dobrovolny, Jackie L.; Fuentes, Stephanie Christine G. – Performance Improvement, 2008
Evaluation is often avoided in human performance technology (HPT), but it is an essential and frequently catalytic activity that adds significant value to projects. Knowing how to approach an evaluation and whether to use qualitative, quantitative, or both methods makes evaluation much easier. In this article, we provide tools to help determine…
Descriptors: Performance Technology, Evaluation Methods, Statistical Analysis, Qualitative Research