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Direct linkGrace C. Tetschner; Sachin Nedungadi – Chemistry Education Research and Practice, 2025
Many undergraduate chemistry students hold alternate conceptions related to resonance--an important and fundamental topic of organic chemistry. To help address these alternate conceptions, an organic chemistry instructor could administer the resonance concept inventory (RCI), which is a multiple-choice assessment that was designed to identify…
Descriptors: Scientific Concepts, Concept Formation, Item Response Theory, Scores
Sachin Nedungadi; Corina E. Brown; Sue Hyeon Paek – Journal of Chemical Education, 2022
The Fundamental Concepts for Organic Reaction Mechanisms Inventory (FC-ORMI) is a concept inventory with most items in a two-tier design in which an answer tier is followed by a reasoning tier. Statistical results provided strong evidence for the validity and reliability of the data obtained using the FC-ORMI. In this study, differential item…
Descriptors: Test Bias, Test Validity, Test Reliability, Gender Differences
