Entry 7The Flow of Interest-Major Fit
Kelvin Li, Jia­Kai Chou, Kwan­Liu Ma — University of California, Davis

Our visualization design focuses on revealing the changes of students' interests and passions about their choices of major. To show the trends of how students’ interests changed, we group the students based on the ACT fit index (good, moderate, poor) and visualize the groups and their changes over time using a Sankey Diagram. The size of the rectangles in the Sankey Diagram represents the number of student in the group. We can see that more students chose a good fit major than a moderate or poor fit major before college. However, in their first and second year of college, more students lost interest in their planned major or changed to a worse fit major than the students who gained interest in their current major or changed to better fit major. This indicates that students’ actual interests were not as well­fitted as their perceived interests.

Within each group in the Sankey Diagram, we use a pie chart to visualize the percentage of each major. By comparing these pie charts, we can see the ratios of each major for different student groups and track how these ratios change over time. For instance, the “S​ciences: Biological & Physical.” major has a large percentage of students with good interest fit and a small percentage of poorly fitted students. On the other hand, the “Commun, Fam., & Personal Svcs” major has a large percentage of students with poor interest fit and a small percentage of students with good interest fit.

On the top of the Sankey Diagram, we provide three stacked bar charts to show the student counts of each major in each range of the ACT scores. Two chord charts are also provided to show how students change their majors.

Kelvin Li (kelli@ucdavis.edu)
Jia­Kai Chou (jkchou@ucdavis.edu)
Kwan­Liu Ma (ma@cs.ucdavis.edu)
Department of Computer Science
University of California, Davis
1 Shields Ave, Davis, CA 95616