Just-in-Time Adaptive Interventions (JITAI)

Behavioral interventions for prevention and treatment are an important part of the fight against drug abuse and conditions such as HIV/AIDS and mental illness. Among the challenges faced by scientists is how and when to alter the course of treatment for participants in the intervention. Adaptive interventions (also known as “adaptive treatment strategies” or “dynamic treatment regimens”) change based on what is best for the patient at that time.

Just-in-time adaptive interventions (JITAIs) are a special type of adaptive intervention where, thanks to mobile technology like activity sensors and smartphones, an intervention can be delivered in every day life, when and where it is needed.

Technically speaking, an adaptive intervention is a sequence of decision rules that specify how the intensity or type of treatment should change depending on the patient’s needs. Researchers are developing data-analytic methods for constructing decision rules that allow researchers to build better JITAIs and adaptive interventions.


Portions of this content and the related scientific research were funded by National Institute on Drug Abuse awards P50 DA039838 and P50 DA010075