Figure 9. Results of the pre/post knowledge-test showing the percentage of correct answers per student (number = student-group, small letter = individual student)

From

Organic Electrochemical Transistors (OECTs) - Hands-on Experiment and Teaching Materials

Dustin Freimuth, Xuqiang Xu, Jana Zaumseil, Silvia Janietz, Amitabh Banerji

World Journal of Chemical Education. 2026, 14(1), 11-17 doi:10.12691/wjce-14-1-2