Barraclough held a 15-13 record as a Nittany Lion.
The university placed in the top 8% of the more than 1,500 institutions graded.
Dixson announced his commitment a day after his official visit to Penn State.
K2 Roots & Vitality Wellness Club expects to open at its new location within a month.
Ott previously served as the interim director of the Huck Institutes of the Life Sciences.
The university's Office of Student Accountability and Conflict Response found the fraternity hosted an unauthorized event in March.