DO YOU PREFER a bath to a shower? Are you fascinated by fire? Atparties, do you sometimes get bored, or always have fun? Do you sometimes feel like smashing things? Do you think Lincoln wasgreater than Washington? Do you feel uneasy indoors? Do you think questions like these tell us anything meaningful about ourselves, ordo you think they're nothing more than parlor game fodder? Regardless of how you answer that last one, the fact is thatpersonality tests featuring questions like those are everywhere these days. The Minnesota Multiphasic Personality Inventory, orMMPI, is taken by as many as 15 million people a year and used to screen applicants for jobs from police officer to nuclear technicianto priest. Eighty-nine companies in the Fortune 100 use the Myers- Briggs Type Indicator to determine how and with whom theiremployees work best. The Rorschach test, the granddaddy of themall, is used diagnostically by eight out of 10 psychologists and routinely submitted as evidence in child custody cases, criminalsentencing, and emotional damage lawsuits. Online dating sites even use personality tests to help match prospective couples.