TIME Study: Temporal Influences on Movement & Exercise Study

University of Southern California, Department of Preventive Medicine/ REACH Lab

Northeastern University, mHealth Research Group

The University of Southern California Keck School of Medicine is recruiting participants for a new study. We are interested in understanding activities, sleep, and health in young adults. If you participate in this study, you will be loaned an Android smartwatch to wear for up to 12 months. During the study, you will answer short survey questions on your Android cell phone and/or the smartwatch. We are excited about this project because it is one of the first studies that will collect data through a smartwatch to study activities, sleep, and health in young adults across the United States. This knowledge may help create better strategies to prevent diseases like diabetes, obesity, heart disease, and cancer. You will be paid monthly for participating in this study.

Your Impact

The TIME Study is a new research project that uses Android-based smartphones and smartwatches to collect real-time data from YOU the participant to better understand how everyday activities affect your physical activity, sitting and sedentary behavior, and sleep. With this information, we hope this may help researchers to develop better behavior change interventions that can help people stay healthy.

Eligibility Criteria

All genders

18 to 29 years old

Must live in the U.S.

Between the ages of 18-29 years old

Have an Android-based smartphone version of 6.0 or higher

Have over 2GB of data

Able to wear a smartwatch and answer real-time smartphone and smartwatch surveys in locations where you spend most of your time (work or at school) everyday

Study Tasks

Complete surveys on your phone
Complete survey questions on a smartwatch
Complete questionnaires (baseline, 6 month, 12 month)


This study is funded by the NIH/NCI (U01HL146327) and approved by the USC IRB (HS-18-00605)


physical activity

Activity and Time

Health and Wellness, Psychology

Observational Study, Polls and Surveys

Weekdays, Weeknights, Weekends

30 minute(s) per session

2 session(s)

You will be asked to complete 2 orientation sessions. Session #1 is a videoconference session that goes over the consent form in detail to review all parts of the study and you will be asked to sign if you're interested in participating. After consenting, we will walk you through downloading the study app onto your phone. Session #2 is a videoconference session to walk you through setting up our study app on a smartwatch that will be loaned to you


Up to $1200 

Study Address

This study doesn't require any in-person visits. Complete it in the comfort of your own home!

You must be a resident in United States, North America to join this study

Posting date: Jun 4, 2020

Earn $1200