The school provided the following statement to PBC:

Allegations, attacks by Art Robinson baseless, false and without merit
CORVALLIS, Ore. — Political candidate Art Robinson published material this past weekend alleging that Oregon State University is engaging in “political payback” against his adult children, who are students at the university, to show allegiance to the congressional representative whom Robinson ran against last fall. Robinson made a long list of additional allegations concerning the faculty of the OSU Department of Nuclear Science and Radiation Health Physics.
The allegations of political influence and the personal attacks on faculty are baseless and false. Since Mr. Robinson began making these claims last fall, university leadership has had ample opportunity to look into them through the Office of the Provost, the Graduate School and the Office of the Dean of the College of Engineering, and can say, categorically, that the allegations and attacks are unfounded and without merit.
It is regrettable that Mr. Robinson continues to spread these false claims, causing concern where none is due. Despite the significant and ongoing attention that the university has given these matters, he has engaged in a pattern of inflammatory and reckless communication riddled with inaccuracies.
The university will continue to respect federal privacy laws with regard to the Robinson students, maintaining confidentiality around their academic progress and records. Additional information on this matter is available at http://oregonstate.edu/ua/ncs/archives/2011/mar/statement-regarding-recent-internet-postings-art-robinson.
About Oregon State University: OSU is one of only two U.S. universities designated a land-, sea-, space- and sun-grant institution. OSU is also Oregon’s only university to hold both the Carnegie Foundation’s top designation for research institutions and its prestigious Community Engagement classification. Its nearly 24,000 students come from all 50 states and more than 90 nations. OSU programs touch every county within Oregon, and its faculty teach and conduct research on issues of national and global importance.

In addition, a university representative points to this interview with Robinson as evidence that he cannot support his claims.