Real-time Ecological Assessment of the Context of mental and physical Health (REACH) on Curious

Ecological Momentary Assessment (EMA) is widely used in mental health research to capture internal states and experiences as they occur in real-world settings, yet the lack of standardization in EMA content, study design, analytical approaches and data collection platforms has hindered comparability across studies and limited progress in mental health research. We have developed standardized, open-source tools for EMA with the R eal-time E cological A ssessment of the C ontext of mental and physical H ealth (REACH) at the National Institutes of Health Clinical Center, to characterize dynamic profiles of physical and mental health across the lifespan. The REACH applet is integrated into Curious, a secure, open- source, configurable, and scalable platform through a collaborative effort with the Child Mind Institute. We describe the content, materials, and methods of REACH shared under a Creative Commons license to promote access and harmonization of these tools in global settings across the life span.