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Technical Documentation for Survey Administration: Questionnaires, Interviews, and Focus Groups. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-7B) ***DRAFT for Public Comments***



Johanna Zmud


This report documents the methods and outcomes of the telephone survey, face-to-face interviews, and focus groups that were conducted in support of the federal building and fire safety investigation of the World Trade Center disaster. In total, 803 telephone interviews were completed, 220 face-to-face interviews were completed and 6 focus groups involving 28 individuals were completed. All interview material was transferred to National Institute of Standards and Technology investigators for analysis.
National Construction Safety Team Act Reports (NIST NCSTAR) - 1-7
Report Number


World Trade Center, high rise buildings, building collapse, disasters, fire safety, fire investigations, terrorists, terrorism, surveys, questionnaires, methodology, evacuation
Created September 1, 2005, Updated February 19, 2017