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parent interview. Those who were not parents were screened -out as ineligible. For both samples, after the parent interview was complete, an interview was completed
with the target child. Data was kept only if the child interview was completed. Weighting and analysis Weighting is generally used in survey analysis to compensate for patterns of
nonresponse that might bias results. The interviewed sample was weighted to match
national parameters for both parent and child demographics. The parent demographics
used for weighting were: sex; age; education; race; Hispanic origin; and region (U.S.
Census definitions). The child demographics used for weighting were gender and age.
These parameters came from a special analysis of the Census Bureau ’s 2008 Annual
Social and Economic Supplement (ASEC) that included all households in the continental
United States. Weighting was accomplished using Sample Balancing, a special iterative sample
weighting program that simultaneously balances the distributions of all variables using
a statistical technique called the Deming Algorithm . Weights were trimmed to prevent
individual interviews from having too much influence on the final results. The use of
these weights in statistical analysis ensures that the demographic characteristics of the
sample closely approximate the demographic characteristics of the national population.
Table 1 compares weighted and unweighted sample distributions to population
parameters. Table 1...
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- Fall '13