Arvianda Zefania Mawuntu 1714025058, Advisors: Nita Maya Valiantien, M.Pd Ririn Setyowati, M.Hum

This thesis discusses about personality of a character named Teresa in a novel entitled The Death Cure by James Dashner by using one of Sigmund Freud's personality theory of id, ego, superego. The researcher uses a qualitative methodology and a psychological approach in this thesis. Furthermore, the theory of factors influencing human personality by Abraham Lahey is also applied to this thesis. The result of this study indicates that the representation of Teresa's personality is grouped into two phases based on the plot of this novel. In the first phase, Teresa has id and ego, however, she does not have the superego. Her id is very strong. Therefore, Teresa’s personality is dominated by the id which makes her ego neglected due to the absence of superego. In the second phase, Teresa has the three of personality structures (id, ego, superego) and those work each other. Moreover, Teresa's personality which is grouped into two phases, the first phase is before memory restoration, and the second phase is after memory restoration, is influenced by external factors or it is known as nurture. Nurture influences Teresa's personality in both phases by identifying at the physical environment and the social environment that is around and experienced by Teresa.

Key words: psychoanalysis, id, ego, superego, nurture, Sigmund Freud