If your hypotheses clearly require sociometric data, then you will have to find
villages that have boundaries that can be defined.  These will generally be
rural villages, and to make the sample sizes manageable you may restrict your
sample to women of reproductive age.  Two recent studies I have been involved in
were conducted in Nepal and Madagascar using these techniques (although the one
in Madagascar interviewed both men and women).  Many social network hypotheses
can be explored using egocentric techniques which would not limit your sample to
somewhat closed communities (we did this with considerable success in Bolivia).
I gather from your affiliation, however, that you want to collect sociometric
data in order to use matrix-based tools, thus you will probably need to find
relatively isolated villages.
A more productive route, however, would be to contact Larry Kincaid at the Johns
Hopkins University Center for Communication Programs ( and ask to
work with the data he has collected in Bangladesh.  They are sociometric and
from many more than 6 villages and are already coded and published.  One paper
from the study:

Kincaid, D. L. (2000). Social networks, ideation, and contraceptive behavior in
Bangladesh: A longitudinal analysis. Social Science and Medicine, 50, 215-231.

If you are interested in sstudies conducted in countries other than Bangladesh
you can contact

Susan Watkins - Kenya (most of these data are egocentric, but I believe there is
some sociometric)
John Casterline and Mark Montgomery - Ghana
Barbara Entwisle - Vietnam and/or Thailand
Me - Women's Voluntary Associations in Cameroon.
Marc Boulay - Nepal
Kirsten Stoebenau - Madagascar.

- Tom V.

> Dear SOCNET members,
> I am a PhD student, trying to find out the influence of communication
> network on fertility behaviour in Bangladesh. I am planning to go to
> Bangladesh for collecting data in March. Roughly, my aim is to interview
> women of reproductive age from six different areas of Bangladesh to have
> sociometric data. Data will be collected to measure, interalia, the
> influence of opinion leaders, cohesive sub-groups, stuctural and positional
> equivalence in adopting family planning devices and also to measure the
> strength of weak ties in this particular issue. Structured questionnaire has
> already been prepared. Problem I am finding at this stage is to select the
> sample boundary.
> 1. Villages are too big to go for intact sampling. What may be the other
> suitable ways of sampling?
> 2. In urban areas, may be the participants indicate their relationships with
> the people who don't reside at the same geographical area. What will be my
> sample boundary in these types of cases?
> In Rogers and Kincaid's (1981)work, all the married women of reproductive
> age  in village Oryu Li were interviewed. In total they were only 69. But in
> Bangladesh, hundreds of married women are available in a village. How can I
> limit my boundary?
> Could I have suggestions and/or any reference of books or articles regarding
> my problem?
> Another more request is , in SOCNET list I didn't find E.M.Roger's e-mail
> address. May I have his e-mail address from any of you.
> I will be looking forward to hearing from you.
> Thanks and regards,
> Kaberi Gayen
> PhD Student
> Department of Mathematics and Statistics
> Napier University
> Sighthill Campus, Sighthill Court
> Edinburgh, EH11 4BN
> UK
> Tel:+44 131 455 3363

Thomas W. Valente, PhD
Director, Master of Public Health Program
Department of  Preventive Medicine
School of Medicine
University of Southern California
1000 Fremont Ave.
Building A Room 5133
Alhambra CA 91803
phone: (626) 457-6678
fax: (626) 457-6699
email: [log in to unmask]