The student provides a well-organized and focused background information section that describes the chemical properties of oils, how rancidity will be measured by POV, and the effects of antioxidants on the rancidity of oils. The methodology is highly appropriate to the set-out aim of the experiment, and the student correctly identifies the independent and dependent variables to pursue the research question. The methodology includes appropriate steps to assure the relevancy and validity of the obtained results, and the student shows full awareness of safety, ethical, and environmental concerns that can arise during the experiment.
