Applied for a job lately? Then your prospective employer probably knows how you spend your Saturday nights. Your could-be boss may also know more about your bathroom habits, sexual preferences and deep thoughts than does the person who shares your bed.
That's if you, like millions of other job applicants, submitted to a personality test. At least 30% of employers--from governments to hospitals, restaurants to law firms, Wal-Mart to DuPont--use a version of the tests in hiring. Even CEOS get tested, which makes sense given their salaries. Carly Fiorina reportedly took a 900-question test before landing the top job at Hewlett-Packard.
Although...