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022 _a0021-9584
037 _bRIEBPL Library
082 _a540.7
100 _aBrandon J. Yik, David G. Schreurs, and Jeffrey R. Raker
245 _a Implementation of an R Shiny App for Instructors: An Automated Text Analysis Formative Assessment Tool for Evaluating Lewis Acid–Base Model Use
_b (Journal Article)
260 _aUSA
_b:American Chemical Society
_cAugust 2023
300 _a3107–3113 P.
490 _aAmerican Chemical Society, Volume 100, Issue 8
505 _a***______{For Hard Copy, Please visit Library.}________***
520 _aAbstract Acid–base chemistry, and in particular the Lewis acid–base model, is foundational to understanding mechanistic ideas. This is due to the similarity in language chemists use to describe Lewis acid–base reactions and nucleophile–electrophile interactions. The development of artificial intelligence and machine learning technologies has led to the creation of predictive text analysis models that evaluate a large number of open-ended, written formative assessment items. One of these machine learning-based tools developed by the authors evaluates correct Lewis acid–base model use. Bridging the gap between educational research, technological innovation, and instructional practice, we report the development of a web-based, interactive app using R Shiny application technologies that automates scoring of written assessments about acid–base chemistry. Results given by this Shiny app, in the form of on-screen output or a downloadable file, provide instructors with immediate feedback to evaluate acid–base instruction in their organic chemistry courses.
650 _aSecond-Year Undergraduate
650 _aUpper-Division Undergraduate
650 _aOrganic Chemistry Acid−Base
650 _aTheories Mechanisms of Reactions
856 _uhttps://doi.org/10.1021/acs.jchemed.3c00400
942 _cPER
999 _c44894
_d44893