Measuring hand washing behaviour : methodoligical and validity issues

Lisa Danquah - author makes the presentation

The full paper is here http://www.irc.nl/page/51625

Self reporting over reports hand-washing...based on structured observations

Field workers can provide useful information of design tools.

Q and A

Structured observations may itself influence behaviour of people

People filled in a consent form for observation

24 hour recall survey- have you used soap for the last 24 hours? For what purpose- washing clothes, bath, hand washing etc etc...

When observation at scale costs a lot such as in a 10,000 questionnaire survey this tool can be very useful...24 hour recall survey.

How do you reduce observer bias...study over a longer time frame...

Micro-biological assessment of say fingertips can also be used...but is costly and difficult..

Can you bring soap please? If it is brought within a minute it is likely being used...if not, not.

Household questionnaire may be more useful rather than individual questions...may be less over reporting.