National Survey of Disaster Experiences and Preparedness (NSDEP), 2007-2008 (ICPSR 34891)

Published: Mar 25, 2014

Principal Investigator(s):
Linda B. Bourque, University of California-Los Angeles

Version V2

The National Survey of Disaster Experiences and Preparedness (NSDEP), 2007-2008 examined public preparedness, mitigation, avoidance actions, intended actions and perceptions of major hazards with an emphasis on the hazards created by terrorism. Telephone interviews were conducted with 3300 United States residents between April 13, 2007 and February 13, 2008. Information was collected on topics such as terrorism, the government, knowledge about terrorism, and disaster/emergency planning and preparedness. Demographic and background variables included marital status, household composition, age, gender, education, country of birth, ethnicity, employment status, and income.

Bourque, Linda B. National Survey of Disaster Experiences and Preparedness (NSDEP), 2007-2008. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2014-03-25.

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National Science Foundation (1543106)

United States Department of Homeland Security. Directorate of Science and Technology (N00140510629, Z923001, 0000052171)


2001-09-11 -- 2008-02-13

2007-04-13 -- 2008-02-13

Additional information about the National Survey of Disaster Experiences and Preparedness can be found at the Earthquake Survey Data at UCLA Web site.

This collection contains string responses which have been edited by ICPSR in order to protect respondent anonymity and prevent disclosure risk. These edited string responses have been provided in the zip file

There are verbatim responses to question one in the survey. These have not been deposited as they are embargoed until 2015. After 2015 they will be deposited with this study.

The purpose was to provide science-based information regarding perceptions of, preparations for, responses to, and recovery from terrorist attacks, in the domestic U.S. context.

The sample was comprised of two strata: a high-visibility stratum and a low-visibility stratum. High visibility areas were conceptualized as high-profile areas with highly visible targets, and thus can be considered at high risk for terrorism. The high visibility stratum included the District of Columbia (DC, Arlington, Fairfax, Prince William, Loudoun, Montgomery, and Prince George's counties), Los Angeles County, and New York City (Bronx, Brooklyn, Manhattan, Queens, and Staten Island). The low visibility stratum included the rest of the continental United States. Sampling within strata was proportional to size with the exception of the District of Columbia, which was over-sampled to protect against under-representation to achieve a sufficient number of complete interviews for analysis. No specific geographic quotas were established for the low-visibility stratum, and interviews were completed in rough proportion to the population for regions, states, and counties. Random-digit-dialing (RDD) was used in sampling. Telephone numbers were pre-screened for business numbers, pre-screened disconnected numbers, and cell phones. Please refer to the Original P.I. Documentation in the ICPSR Codebook for additional information on sampling.


Residents of the continental United States


survey data

computer-assisted telephone interview (CATI)

The data consists of 415 variables that are centered around respondents' recollection of terrorist events and natural disasters.

35 percent, calculated as the ratio of unweighted completion cases to estimated eligible cases. Please refer to the Original P.I. Documentation in the ICPSR Codebook for additional information on response rates.



2014-02-10 ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:

  • Standardized missing values.
  • Created online analysis version with question text.
  • Checked for undocumented or out-of-range codes.

2014-03-25 The processing notes in the Codebook have been edited to include additional variables. An Excel file in the zipped package was also edited for disclosure risk.

The data are not weighted. However, the weight variables SAMPHHWT and RAKEDHHWT are present and may be applied to the data. Applying SAMPHHWT makes the sample unbiased, but only with respect to the responding population. RAKEDHHWT sums to the sample size and can be used in place of the original sampling weight, SAMPHHWT. Please refer to the Original P.I. Documentation in the ICPSR Codebook for additional information on weighting.


  • Data in this collection are available only to users at ICPSR member institutions.

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