CASE STUDIES IN BIOMETRY: Chapter 20.

Two-Stage Sampling Designs  for Adolescent Depression Studies

Cheryl L. Addy, Kirby L. Jackson, Robert E. McKeown, 
Jennifer L. Waller, Carol Z. Garrison

The file ch20.dat contains the following variables:

id           subject identifier
clinical     indicator for selection into clinical sample:
                   1=in clinical sample; 0=not in clinical sample
stratum      stratum membership:
                   1=high screen; 2=low screen blacks;
                   3=low screen whites
race         subject's self-reported race:
                   1=white; 2=black
gender       subject's gender:
                   1=male; 2=female
rparents     subject's guardian status:
                   1=does not live with both natural parents;
                   0=lives with both natural parents
cesdtot      subject's total center for epidemiologic studies depression
                   scale score (range 0-60)
cohtot       subject's total cohesion score, based on faces-ii
                   (range 16-80)
mdd          clinical diagnosis of major depression:
                   1=positive diagnosis; 0=negative diagnosis
                   9=missing for subjects not in clinical sample
weight       sampling weights used in logistic regression; defined as
                   number of subjects in screening sample in each stratum


The authors hereby give permission to redistribute this data set. 
The authors retain the copyright to these data but allow that the
data set can be used freely for noncommercial purposes and can
be freely distributed.