@2018eastorwest, if you are referring to the paragraph in which Bob Schaeffer outlines his theories and speculations about how some cheating takes place, then no, I didn’t see either evidence (of anything) or mention of adults. I saw conjecture and allusion to unspecified people of unspecified age.
Now, that doesn’t mean that adults are not involved in SAT cheating. Just last year, as you likely recall, federal law enforcement took down an international Chinese-American cheating operation that forged passports and sent imposter test-takers to sit the SAT in place of others. Were adults involved? Yes. Were adults test-takers involved? No.
Recent cheating scandals in Asia have involved widespread leakage of test materials. The May 2013 test cancellation in Korea did not occur because adults were taking the SAT; it occurred because adults (almost certainly including adults within College Board and ETS’s own distribution apparatus) got their hands on the test before test date and sold it all over Korea for their own profit.
Can I say that no adult test-taker has ever been involved in cheating? No, of course not. But in the broader context of recent SAT cheating, this is simply a red herring–it is not an issue.