attrition in longitudinal studies

[Shelley Velleman]

Assistance urgently needed!

I need to know what kinds of attrition rates people have had
in longitudinal studies, especially of very young kids (I hope to be
following mine from 12 - 42 months).  Especially if you've had experience
with low SES groups, I'd really appreciate you sharing your experience,
including any strategies that helped to reduce attrition.

Please include:

Age range:
SES:
Strategies that did or did not work to reduce attrition (Please state
which!):
Location:

Many thanks!!

Shelley Velleman
UMass - Amherst