Click on the following links. Please note these will open in a new window.

The following websites provide an overview of experimental research designs and various ways to randomly select study participants.

• www.sociosite.net
• www.prisonexp.org
• www.fbi.govwww.random.org/
• www.random.org/lists/
• www.policefoundation.org/projects/randomized-experiments/
• www.ncjrs.gov/pdffiles1/Digitization/146242NCJRS.pdf