Categories
Six kinds of studies, explained simply
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Healthy Volunteer Studies
Studies that invite people without a specific condition to help researchers understand how the body typically responds.
What to generally expect
- Short screening visit run by the program
- Clear schedule shared up front
- Questions answered before you decide
Observational Studies
Researchers observe and record information over time without assigning a specific intervention.
What to generally expect
- Surveys or check-ins
- Often flexible or remote
- Varies from weeks to years
Behavioral Studies
Studies that explore habits, routines, sleep, learning, or everyday decision-making.
What to generally expect
- Questionnaires or app tasks
- Interviews or group sessions
- Often low time commitment
Prevention Studies
Studies looking at ways to help people stay well, such as lifestyle approaches or routine screenings.
What to generally expect
- Lifestyle or routine guidance
- Periodic follow-up visits
- Details set by each program
Interventional Studies
Studies where participants follow a specific plan defined by the research team's protocol.
What to generally expect
- Detailed consent process
- Scheduled visits
- Independent oversight by the program
Device Studies
Studies that look at how people use wearables, sensors, apps, or other tools in daily life.
What to generally expect
- Hands-on product use
- Feedback sessions
- Program-provided instructions