What data would you collect in order to prove this hypothesis statement?Are there any terms that the researcher would have to define before proceeding?

Read a journal article with this as the hypothesis statement: “A university athletic department that uses social media in athletic recruitment attracts higher-quality athletes than others who do not use social media.”
A. What data would you collect in order to prove this hypothesis statement?
B. Are there any terms that the researcher would have to define before proceeding?