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2013 NSDUH Sampling Error Report

Published by Substance Abuse and Mental Health Services Administration | U.S. Department of Health & Human Services | Metadata Last Checked: September 07, 2025 | Last Modified: 2025-09-06
This report compares the estimated (or realized) precisions of a key set of estimates with the targets for the 2013 National Survey on Drug Use and Health (NSDUH), formerly called the National Household Survey on Drug Abuse (NHSDA). The comparison was made with targets specified by the Substance Abuse and Mental Health Services Administration (SAMHSA) and with the predicted precisions that statisticians from RTI International anticipated during the design of the survey. In addition, tables of realized DEFFs are provided. This report is organized as follows. Chapter 2 summarizes the 2013 sample design. Chapter 3 describes the calculation of relative standard errors (RSEs) and DEFFs. Chapter 4 presents tables that compare the observed precisions with the expected precisions. Chapter 5 compares median and mean DEFFs. Chapter 6 presents median and mean DEFFs for specific analysis domains. Finally, concluding remarks are provided in Chapter 7.

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