Such tools, however, have mainly been the trademark of large corporations recruiting armies of similar workers, like telephone service representatives or insurance sales agents. They are rarely used in Silicon Valley, which is built on a belief in idiosyncratic talent.
“Yahoo does not use tests, puzzles or tricks, etc, when interviewing candidates,” Jessie Wixon, a spokeswoman for Yahoo, said. (Google is known for hazing prospects in interviews with intractable brain teasers. And it once tried to attract candidates by placing some particularly difficult problems on billboards.)
—SAUL HANSELL