Abstract : It is essential to consider the psychological aspect of selecting new students to determine the success of prospective students. In this paper, we propose an approach to predict student performance based on their psychological test scores using the Decision Tree algorithm. The dataset used in this study was taken from the student admission process at the Institut Teknologi Del.
The admission dataset contains the scores of psychological tests and the Grade Point Average (GPA) of classes 2019, 2020, and 2021. Each class has its own attribute set. Therefore, we came up with two approaches. The first approach was to use as many records as possible, and the opposite of the second was to utilize more features.
Our results showed that the first approach was slightly better. The MAE value was 0.3654 to 0.4568. Moreover, none of the psychological test attributes strongly correlate to GPA and hence do not guarantee student performance.

Keyword : Decision Tree, Machine Learning, Psychological Test