The National Survey on Drug Use and Health (NSDUH) series (formerly titled National Household Survey on Drug Abuse) primarily measures the prevalence and correlates of drug use in the United States. The surveys are designed to provide quarterly, as well as annual, estimates. Information is provided on the use of illicit drugs, alcohol, and tobacco among members of United States households aged 12 and older. Questions included age at first use as well as lifetime, annual, and past-month usage for the following drug classes: marijuana, cocaine (and crack), hallucinogens, heroin, inhalants, alcohol, tobacco, and non-medical use of prescription drugs, including pain relievers, tranquilizers, stimulants, and sedatives. The survey covered substance abuse treatment history and perceived need for treatment, and included questions from the Diagnostic and Statistical Manual (DSM) of Mental Disorders that allow diagnostic criteria to be applied.
The 21st Century Americanism survey was conducted to study (1) the multidimensional nature of American identity (“Americanism”); (2) resentment among Whites toward immigrants, Latinos, and Asians, fueled by perceptions that these groups violate the cherished norms that constitute American identity (“symbolic nativism”); (3) how perceptions of discrimination affect the process of “becoming American” among ethnic minorities (“reactive ethnicity”); and (4) the relationships among these issues and public opinion on policies that address ethnic change. The data collection began in July 2004 and was completed by October 2004.