Randomized Controlled Trials
Randomized controlled trials are the gold standard in research, producing causal evidence about the efficacy and impact of policies and programs.
A randomized controlled trial, or RCT, is considered the gold standard in research. A RCT is a rigorous study that randomly assigns participants to either a “treatment group” who are offered the intervention, or a “control group” who have access to all other services except for the intervention. By measuring what would have happened to the treatment group without the intervention, an RCT lets researchers isolate the effect of the intervention itself.
The Crime Lab uses RCTs as our preferred method of project evaluation wherever possible. While RCTs can be time and resource intensive, they generate high-quality results to ensure that our partners and policymakers can make informed decisions about how to best support communities affected by gun violence.
Latest Updates
What new tactic Knoxville police and city officials say helped reduce shootings in 2024
The Knoxville News Sentinel’s Myron Thompson cites a Crime Lab study showing that streets with more lighting see a decline in crime.
Chicago violence: City sees fewer than 600 murders in 2024 for 1st time since 2019; shootings, carjackings also down
ABC 7’s Craig Wall covers the Crime Lab’s year-end analysis of crime trends in Chicago showing that despite encouraging signs of progress, Black Chicagoans are still 20 times more likely than their white counterparts to be killed by a gun or to be a victim of a homicide.
Maintaining violent crime decline is Chicago’s evergreen resolution
The Chicago Sun-Times Editorial Board provides commentary on the promising declines in violence from the Crime Lab’s end-of-year analysis and the need for continued support for successful violence prevention programs.
