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America's Children: Key National Indicators of Well-Being, 2017

Statistical Significance

The Forum continues to strive to demonstrate greater consistency and standardization in the presentation of information in this report. Many estimates in this report are based on a sample of the population and are therefore subject to sampling error. Standard tests of statistical significance have been used to determine whether differences between estimates indicate that differences between populations exist at generally accepted levels of confidence or that they are likely to have occurred by chance. Differences between estimates are tested for statistical significance at either the 0.05 or 0.10 cutoff level, according to agency standards; all differences discussed in the report are statistically significant unless otherwise noted. Standard error tables for select indicators are available online at https://www.childstats.gov.