Listmates: Apologies to those who
get this more than once...

We are planning a randomized
trial comparing methods of prenatal
health education and effects on recall
(knowledge) of key messages. To
calculate sample size we need to
determine the expected effect of print
materials and audio tapes. Any
references you can suggest will be most
appreciated.  Thanks in advance. SS

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Sandra Smith, MPH, CHES
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Editor, Beginnings: A Practical Guide
Through Your Pregnancy
Editor, http://www.PrenatalEd.com
Practice Development, Inc.
2821 2nd Avenue #1601
Seattle WA 98121

Health Education Specialist
UW Center for Health Education &
Research
901 Boren Avenue #1100
Seattle WA 98104-3508

Phone 206-441-7046
Fax     206-728-1926
Campus  Mail 359932