About | HeinOnline Law Journal Library | HeinOnline Law Journal Library | HeinOnline

1 Herbert Koppel, Lifetime Likelihood of Victimization 1 (1987)

handle is hein.death/liflv0001 and id is 1 raw text is: U.S. Department of Justice
Bureau of Justice Statistics

Bureau of Justice Statistics
Technical Report

Lifetime

Likelihood

of Victimization

by Herbert Koppel
BJS Analyst
This report provides estimates of the
likelihood that a person will become a
victim of crime during his or her life-
time, or that a household will be vic-
timized during a 20-year period. This
contrasts with the conventional use of a
1-year period in measuring crime and
criminal victimization. Most promi-
nently, the National Crime Survey
(NCS) surveys a sample of U.S. house-
holds and publishes annual victimization
rates, and the FBI's Uniform Crime
Reports (UCR) provide annual rates of
crimes reported to the police.
Annual victimization rates
Annual victimization rates alone do
not convey the full impact of crime as
it affects people. No one would express
his or her concern by saying, I am ter-
ribly afraid of being mugged between
January and December of this year.
People are worried about the possibility
that at some time in their lives they
will be robbed or raped or assaulted, or
their homes will be burglarized.
Annual rates can provide a false
sense of security by masking the real
impact of crime. Upon hearing that the
homicide rate is about 8 to 10 per
100,000 population, one feels safe;
after all, I chance in 10,000 is not very
frightening. Actuallj however at
recent homicide rates about Lppyery
133Americans will become a murder
I CTi7ra'b      males the roprtioIL.
-estimt    to be 1 of ev  30.
Similarly, while 16 out of 10,000 women

March 1987
The Bureau of Justice Statistics
National Crime Survey provides
annual victimization rates based
on counts of the number of crimes
reported and not reported to
police in the United States. These
rates are based on interviews
twice a year with about 101,000
persons in approximately 49,000
nationally representative
households. Those annual rates,
while of obvious utility to
policymakers, researchers, and
statisticians, do not convey to
American citizens the full impact
of crime on them nor do they
answer a critical question for each
individual: What is the possibility
that I will be a crime victim? This
technical report is designed to
shed light on this question.
Steven R. Schlesinger
Director
are rape victims annually, the lifetime
chances of suffering a rape are much
greater.
Certainly, annual rates are useful.
A 1-year period is probably optimum
for researchers, statisticians, and plan-
ners. It encompasses exactly one cycle
of seasonal variation. It is long enough
to smooth out the impact of extraordi-
nary events (such as a mass murder in a
small city) and to allow time for col-
lecting and analyzing data. On the
other hand, a 1-year period is short
enough to show changes and trends in
crime rates. The problem lies with

people's perception of the meaning of
annual rates with respect to their own
lives. If the Earth revolved around the
sun in 180 days, all of our annual crime
rates would be halved, but we would not
be safer.
Calculating lifetime victimization rates
For this report, lifetime likelihoods
of victimization were calculated from
NCS annual victimization rates and life
tables published by the National Center
for Health Statistics.2 The probability
that a person will be victimized at a
particular age basically depends upon
(a) the probability that the person is
still alive at that age and (b) the prob-
ability that a person of that age will be
victimized. The lifetime likelihood of
personal victimization is derived from
the probabilities of being victimized at
the various ages that constitute a life-
time. A similar method is used for cal-
culating the long-term likelihood of
crimes against households.
Because of the assumptions involved
in the calculations and because the data
derive from a sample survey, the num-
bers presented in this report are
estimates only; they should be inter-
preted only as indications of approxi-
mate magnitude, not as exact mea-
sures. Essentially they are calculated
values of lifetime risk rather than des-
criptions of what has been observed.
For the purposes of this report, a
lifetime begins at age 12. This is dic-
tated by the data available from the
NCS, which does not cover persons
younger than 12 years old. Also,

1@

What Is HeinOnline?

HeinOnline is a subscription-based resource containing thousands of academic and legal journals from inception; complete coverage of government documents such as U.S. Statutes at Large, U.S. Code, Federal Register, Code of Federal Regulations, U.S. Reports, and much more. Documents are image-based, fully searchable PDFs with the authority of print combined with the accessibility of a user-friendly and powerful database. For more information, request a quote or trial for your organization below.



Contact us for annual subscription options:

Already a HeinOnline Subscriber?

profiles profiles most