A conservative alumni group at the University of California at Los Angeles on Monday withdrew its offer to pay students $100 to file tapes and notes on what professors say during courses.

A statement from the group’s founder, Andrew Jones, said that debate over the offer had become “a distraction from the real problem, which is classroom indoctrination.” Professors at UCLA and elsewhere have criticized the tactic of paying students as unethical and a violation of professors’ intellectual property rights.