I'd like to know how they got their figures.
==Tom
The following is taken from the link supplied earlier in the thread.
Observational Survey Methodology
Harris Interactive® conducted an observational study on behalf of the American Society for Microbiology and The Soap and Detergent Association in August 2007. They observed the behavior of 6,076 adults (of whom 3,065 were men and 3,011 were women, who appeared to be age 18 and older) in public restrooms located at major public attractions in the U.S., and recorded whether or not they washed their hands after using the facilities. The research was conducted in four cities and at six different locations:
* Atlanta – Turner Field
* Chicago – Museum of Science and Industry and Shedd Aquarium
* New York City – Penn Station and Grand Central Station
* San Francisco – Ferry Terminal Farmers Market
Observers discreetly watched and recorded whether or not adults using public restrooms washed their hands. Observers were instructed to groom themselves (comb their hair, put on make-up, etc.) while observing and to rotate bathrooms every hour or so to avoid counting repeat users more than once. Observers were also instructed to wash their hands no more than 10% of the time. The 2007 observational research results can be directly compared to the 2005 findings (6,336 observations) as they took place at the same locations using the same methodology.