life & amp;work



LIFE & amp;WORK
Testing for dollars
kDAWN SCROFANO is among thousands of Americans who, for a freebie, a few bucks or hundreds of dollars, give opinions or try products. Researchers say such "guinea pigs" can give companies an edge before goods and treatments are unleashed on the public.
PAGE B5

Don't Miss a Story

Sign up for our newsletter to receive daily news directly in your inbox.