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In-state and out-of-state performance were compared for general chemistry I and II sequence, using calculator-free diagnostic instruments measuring broad prior knowledge. MUST examined basic arithmetic procedures, QL/QR evaluated drawing conclusions from image-based data, and DAT measured algebra skills. 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Robert Shelton, Ph.D.3, Anton Dubrovskiy, PhD4, Cynthia B. Powell, Ph.D.5, Blain Mamiya, Ph.D.6, Susan Broadway7, Rebecca Weber, PhD8, Vickie M. Williamson, PhD, ACSF9  \n1 Professor, Dept. of Chemistry, Texas A&M University-Commerce, Commerce, [TX 75429-3011. Email: Ben.Jang@tamuc.edu](TX 75429-3011. Email: Ben.Jang@tamuc.edu)[ ](TX 75429-3011. Email: Ben.Jang@tamuc.edu)[https://orcid.org/0000-0002-1464-235X](https://orcid.org/0000-0002-1464-235X)  \n2 Assistant Professor of Chemistry, Sam Houston State University, Huntsville, TX, 77340, Email: [axv067@shsu.edu](axv067@shsu.edu)[ ](axv067@shsu.edu)[https://orcid.org/0000-0001-5445-2836](https://orcid.org/0000-0001-5445-2836)  \n3 Assistant Instructional Professor – Chemistry, Department of Science & Mathematics, Program Coordinator for Physical Sciences Director of International Education, Texas A&M University – San Antonio, One University Way, San Antonio, TX 78224, phone: 210.784.2246; email: [bob.shelton@tamusa.edu](bob.shelton@tamusa.edu); [https://orcid.org/0000-0002-9109-342X](https://orcid.org/0000-0002-9109-342X)  \n4 Dept of Physical and Applied Sciences, University of Houston – Clear Lake, Chemistry Program, 2700 Bay Area Blvd, Houston, TX 77058-1002, Email: [anton.dubrovskiy@gmail.com](anton.dubrovskiy@gmail.com); [https://orcid.org/0000-0001-5917-7394](https://orcid.org/0000-0001-5917-7394)  \n5 Professor, Department of Chemistry and Biochemistry, Executive Director, Center for Pre-Health Professions, Abilene Christian University, [Email: powellc@acu.edu](Email: powellc@acu.edu); 325-674-2864 or 325-674-2351; [https://orcid.org/0000-0001-6719-4186](https://orcid.org/0000-0001-6719-4186)  \n6 Assistant Professor of Instruction, Basic Chemistry Coordinator, University of Texas at San Antonio, Department of Chemistry San Antonio, TX 78249, Office: BSE 1.660, Office Phone: (210) 458-5448; [Email: blain.mamiya@utsa.edu](Email: blain.mamiya@utsa.edu); [https://orcid.org/0000-](https://orcid.org/0000-)[ ](https://orcid.org/0000-)[0001-6460-4928](0001-6460-4928)  \n7 Lecturer. Department of Chemistry. University of North Texas. Denton, TX 76203-5017. Email: [suechemist@verizon.net](suechemist@verizon.net); [https://orcid.org/0000-0001-8489-3448](https://orcid.org/0000-0001-8489-3448)  \n8 Senior Lecturer and Undergraduate Advisor, Department of Chemistry, University of North Texas, Denton, TX 76203-5017, Email: [rebecca.weber@unt.edu](rebecca.weber@unt.edu); 940-369-8433; [https://orcid.org/0000-0003-4384-6084](https://orcid.org/0000-0003-4384-6084)  \n9 Instructional Professor Emeritus, Texas A&M University, Department of Chemistry, College Station, TX 77843-3255, Email: [williamson@tamu.edu](williamson@tamu.edu); [https://orcid.org/0000-0002-6071-8765](https://orcid.org/0000-0002-6071-8765)  \n*Corresponding author: Diana Mason, PhD, Professor Emeritus, Department of Chemistry, University of North Texas, Denton, TX 76203-5017, Email: [dmason@unt.edu](dmason@unt.edu); [https://orcid.org/0000-0002-1471-8158](https://orcid.org/0000-0002-1471-8158)  \nCitation: Jang B, Villalta-Cerdas A, Shelton GR, Dubrovskiy A, Powell CB (2023) Effects of Texas' Isomorphic Curriculum on  \nReadiness for Post-secondary STEM Gateway Courses in Chemistry. American J Sci Edu Re: AJSER-143.  \nReceived Date: 01 December, 2023; Accepted Date: 05 December, 2023; Published Date: 11 December, 2023  \nAbstract  \nThis study analyzed six years of data from nine universities in the state of Texas. Compared were assessment averages reflecting in-state and out-of-state students'preparation for a major STEM gateway course sequence, general chemistry I and II (Chem I/II). Students'preparation was evaluated by calculator-free diagnostic instruments covering a broad range of prior knowledge. The MUST (Math-Up Skills Test) assessed procedural skills in basic arithmetic, ","cbCailQ8qQL9F2rS","https://ap.wps.com/l/cbCailQ8qQL9F2rS","pdf",701937,"English","# Abstract\n# Keywords\n# Introduction","[{\"question\":\"What data and institutions were analyzed in the study?\",\"answer\":\"The study analyzed six years of data from nine universities in Texas.\"},{\"question\":\"How was student preparation for Chem I/II evaluated?\",\"answer\":\"Preparation was assessed using calculator-free diagnostic instruments: MUST for arithmetic, QL/QR for reasoning from image-based data, and DAT for algebra skills relevant to general chemistry success.\"},{\"question\":\"What were the main findings about Texas students’ readiness compared with out-of-state peers?\",\"answer\":\"Students educated in Texas were less prepared for success than out-of-state peers in the initial results; however, students who continued through the sequence to Chem II improved and no longer performed at a statistically lower level.\"}]","Effects of Texas' Isomorphic Curriculum on Readiness for Post-secondary STEM Gateway Courses in Chemistry | PDF",1789643555,18]