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Redox Concept Inventory (ROXCI)


Redox Concept Inventory (ROXCI) was developed to assess the understanding and confidence level of students about oxidation-reduction (redox) reaction with common related themes such as oxidation numbers, surface features, electron transfer, spectator ions, dynamics reaction process, and electrostatics and bonding. 


ROXCI is administered in undergraduate chemistry courses (general chemistry and organic chemistry).

Typical Performance

We have not performed an analysis of the LASSO data for typical performance, but the literature study shows that the assessment can be generalized to test the understanding and misconceptions of students.


ROXCI has been administered to college chemistry students, and assessments were reviewed by chemistry education research graduates and authors. Relevant articles are listed below:

      Brandriet, A. R., & Bretz, S. L. (2014). The development of the Redox Concept Inventory as a measure of students’ symbolic and particulate redox understandings and confidence. Journal of Chemical Education, 91(8), 1132-1144.

      Brandriet, A. R., & Bretz, S. L. (2014). Measuring meta-ignorance through the lens of confidence: examining students’ redox misconceptions about oxidation numbers, charge, and electron transfer. Chemistry Education Research and Practice, 15(4), 729-746.


We recommend using Google Scholar and the citations listed under validation to find articles of interest.

Example LASSO Report

Please follow this link to our example report for concept inventories.

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