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Lee Jia Yi, Janice; Aryadoust, Vahid; Ng, Li Ying; Foo, Stacy – International Journal of Listening, 2023
With the advent of new technologies, assessment research has adopted technology-based methods to investigate test validity. This study investigated the neurocognitive processes involved in an academic listening comprehension test, using a biometric technique called functional near-infrared spectroscopy (fNIRS). Sixteen right-handed university…
Descriptors: Test Validity, Brain Hemisphere Functions, Spectroscopy, Undergraduate Students
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Gehman, Courtney A.; Hantz, Eric R.; Hamann, Christian S. – Journal of Chemical Education, 2021
[superscript 1]H NMR spectroscopy is a molecular characterization technique that is ubiquitously used in research and teaching laboratories alike. Strategic deuteration of molecules is a commonly employed technique in the deconvolution of [superscript 1]H NMR signals. Here this approach is applied in a second-year chemistry course in which…
Descriptors: Undergraduate Students, College Science, Chemistry, Science Experiments
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Keene, Joseph D.; Kiefer, Adam M. – Journal of Chemical Education, 2021
Lecture-only chemistry courses without a dedicated laboratory component present a significant challenge for instructors to reinforce course content with hands-on learning experiences. This is especially true for lecture courses in which students are unable to directly visualize and operate instrumentation. Herein, we present an in-class activity…
Descriptors: Science Instruction, Lecture Method, Chemistry, Simulation
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Vogt, Frank – Journal of Chemical Education, 2011
Most measurement techniques have some limitations imposed by a sensor's signal-to-noise ratio (SNR). Thus, in analytical chemistry, methods for enhancing the SNR are of crucial importance and can be ensured experimentally or established via pre-treatment of digitized data. In many analytical curricula, instrumental techniques are given preference…
Descriptors: Measurement Techniques, Spectroscopy, Chemistry, Data Analysis
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Castle, Karen J.; Rink, Stephanie M. – Journal of Chemical Education, 2010
A new physical chemistry laboratory experience has been designed for upper-level undergraduate chemistry majors. Students customize the first 10 weeks of their laboratory experience by choosing their own set of experiments (from a manual of choices) and setting their own laboratory schedule. There are several topics presented in the accompanying…
Descriptors: Majors (Students), Chemistry, Laboratories, College Science