Of the data analyzed, two of the three OC1 students and all four OC2 students successfully identified the more deshielded compound. Three themes were observed that defined how students approached these problems. Of the five excluded data points: one student opted not to answer, which was allowed by the IRB protocol and the other four discussed electrons but 345 did not mention the role of electron density as related to deshielding: (I-3) "the electrons are able to go closer to the nucleus."