The university's test was made to determine what things make people want to vote for a candidate. They even made a hypothesis on a male and a female running for office. They believed that male and female voters would want to vote for someone who was smart and good looking at the same time. Even though they came up with this, this is still a hypothesis. Determining a person's vote for a candidate on just a person's traits isn't enough evidence.
Chiao a woman who conducted the experiment in the psychology department stated that the femal candidate needs to be beautiful and intelligent because you never know if both of these factors can work with you.