Aubrey actually uses both Ethos and Logos to persuade Tamia. She uses Ethos when referencing the study from Massachusetts Institute of technology. Referencing a credible institute helps to gain Tamia's trust. She uses Logos when explaining the study, stating that drugstore melatonin supplements contain ten times as much as necessary for quality sleep. This helps to appeal to Tamia's logic; the use of fact and numberical info helps her to think logically about the supplements.
