STALKING VICTIMIZATION, 2019 | FEBRUARY 2022 13
Methodology
Data collection
e U.S. Census Bureau carries out the National Crime
Victimization Survey (NCVS) and its Supplemental
Victimization Survey (SVS) on behalf of the Bureau of
Justice Statistics (BJS). e NCVS collects data on crimes
reported or not reported to police against persons age
12 or older from a nationally representative sample of
U.S. households. e sample includes persons living in
group quarters (such as dormitories, rooming houses,
and religious group dwellings) and excludes persons
living in military barracks and institutional settings (such
as correctional or hospital facilities) and persons who
are homeless.
From July 1, 2019 through December 31, 2019, persons
age 16 or older in sampled NCVS households received
the SVS at the end of the NCVS interview. Proxy
responders to the NCVS interview did not receive the
SVS. All NCVS and SVS interviews were conducted
using computer-assisted personal interviewing, either
by telephone or an in-person visit. Of the 141,300
original NCVS-eligible respondents age 16 or older,
approximately 105,000 completed the SVS questionnaire,
resulting in a response rate of 74.3%.
e combined SVS unit response rate for NCVS
households, NCVS persons, and SVS persons was 51.9%.
Because of the level of nonresponse, a bias analysis was
conducted. e results indicated that there was little to
no substantive bias due to nonresponse in the nal SVS
weighted estimates.
e SVS collected individual-level data on the
prevalence of stalking victimization among persons,
the characteristics of stalking victims, and the patterns
of reporting to the police and other authorities.
Respondents were asked whether they were stalked
during the 12 months prior to the interview. For
example, persons interviewed in July 2019 were asked
about stalking victimization that occurred between
July 2018 and June 2019. Stalking victimizations were
classied by the year of the survey and not by the year of
the victimization.
Persons who reported a stalking victimization were
asked more detailed questions about their victimization
and their responses to it, such as the victim-oender
relationship, physical and emotional consequences to the
victim, self-protective measures taken, and the response
of the criminal justice system. For most sections of the
survey, the SVS asked stalking victims to think about
the person or persons who committed these unwanted
contacts or behaviors in the last 12 months when
answering questions.
Changes to the measurement of stalking
victimization in the SVS
BJS rst collected data from the SVS in 2006. e
supplement was designed in 2005, shortly before federal
stalking laws changed under the Violence Against
Women and Department of Justice Reauthorization Act
of 2005 (VAWA). VAWA expanded the legal denition of
cyberstalking to include all communications via soware
that use the Internet or Internet-based technologies. e
law also expanded the victim-harm requirement to
include substantial emotional harm to the victim in
addition to actual or reasonable fear.
3
In 2013, VAWA was amended to address presence,
intimidation, substantial emotional distress, and
cyberstalking.
4
First, the law was expanded to apply
to any person stalking another person within U.S.
waters, territorial jurisdictions, or states. Second, the
stalker’s intent previously had to be to kill, injure, harass,
or place a person under surveillance, and this was
expanded to include intimidation. ird, the law was
expanded to include acts that caused, were intended
to cause, or would be reasonably expected to cause
substantial emotional distress. Finally, the denition of
cyberstalking was expanded to include any electronic
communication, including interstate and foreign
electronic communication.
In 2015, BJS redesigned the 2006 SVS instrument to
incorporate the 2005 and 2013 updates to VAWA. e
redesigned instrument began with a series of screener
questions about each element of VAWA’s stalking
denition. e screener included expanded questions
about unwanted contacts and behaviors associated
with traditional stalking and stalking with technology.
Separate screener questions were also developed to
measure victim responses of fear and substantial
emotional distress.
If the respondent’s answers identied them as a stalking
victim, the survey instrument included additional
questions focused on details of the stalking victimization.
In addition to the changes to the instrument, BJS lowered
the minimum age of survey respondents from 18 to 16.
3
Violence Against Women and Department of Justice Reauthorization
Act of 2005, 109 U.S.C. § 3402 et seq. (2005). https://www.gpo.gov/fdsys/
pkg/BILLS-109hr3402enr/pdf/BILLS-109hr3402enr.pdf
4
Violence Against Women Reauthorization Act of 2013, 113 U.S.C.
§ 2261A et seq. (2013). https://www.gpo.gov/fdsys/pkg/BILLS-
113s47enr/pdf/BILLS-113s47enr.pdf