Articles Published by NIJ

Many factors can influence study design, particularly when evaluating intervention in the field. Although randomized controlled trials are considered the gold standard of evaluations, there are certain considerations that may exclude their use.

A sensor technology first developed for medical use is being adapted to detect and visualize destroyed serial numbers in firearms.

An NIJ-funded evaluation finds that a revised curriculum and greater attention to teacher training have resulted in an improved program for preventing gang membership and delinquency.

Having evaluation in mind when designing a program can help ensure the success of future evaluations.

Challenges serve as an alternative to NIJ's traditional grant-making process and as a way to advance the cutting edge of research.

Study finds less than 1.2 percent error rate in matching bullets fired from Glock semiautomatic pistol barrels to the actual firearm.

Study finds that increased interaction with nearby large-town agencies improves preparedness of smaller jurisdictions.

We need to better understand how wrongful convictions affect the original crime victims and improve systemic support available to them.

An NIJ-funded examination of NIBIN offers recommendations for improving the program's tactical and strategic value.

NIJ provides a multilevel system of support helping researchers at every level of their careers. 

Using rigorous research methods like randomized controlled trials can help increase confidence in evaluation findings.