Their type of crime data has been ongoing since 1973 and their latest data available id from 2015. Collection is conducted by the U.S Census Bureau of Justice Statistics (BJS). They collect data by multi-stage cluster sampling; compile a stratified group, sample, and sub sample the set. Data is obtained from a nationally representative sample, approximately 90,000 households and nearly 160,000 persons participate voluntarily. Those who agree to participate are asked about characteristics and consequences of criminal victimization in the United States. Since individuals are the unit of analysis, survey becomes the best option; which are often used to count crime. People are asked about their victimization which counters problems of data collected by the police. Additionally, these …show more content…
The interviewer would rely on the respondent’s memory and due to some unpleasant experiences they would not be able to recall or their memory might not be good enough. Since it is a voluntary participation, then there is a threat to generalize the data obtain to the other populations. One strength is that NCVS follows the people they interviewed for a frame time of 2 years and replace them with other families when one leaves.
Weaknesses for the UCR include that they use secondary data that is published by law enforcement departments. Thus, police departments have wide discretion to report crimes. Strengths include that there is an Association of State Uniform Crime Reporting Programs (ASUCRP) which focuses of UCR issues inside individual state law enforcement associations. Additionally, these organizations make sure that the data released by the UCR are widespread and responsible used, giving assistance to data contributors when