This paper presents the results of a pilot study of job-specific modules developed for use in the study questionnaire of the Northern California Childhood Leukemia Study (i) to estimate the variability in response between people administered the same module and (ii) to estimate the number of modules required per family.
School of Public Health, Division of Public Health Biology and Epidemiology, University of California, Berkeley, Berkeley, California, United States. kreinier@uvm.edu
