Asked by rachel
The Jackson Heart Study focused on understanding cardiovascular disease among African Americans. Researchers gathered data through regular physical exams, detailed medical histories, and lifestyle surveys with participants over time. They identified risk factors and health outcomes that were common in this group.
How do you know that the Jackson Heart Study is an observational study?
Researchers randomly assigned participants to different treatment groups to test the effects of various interventions on cardiovascular health.
Researchers randomly assigned participants to different treatment groups to test the effects of various interventions on cardiovascular health.
Researchers conducted regular physical exams, collected detailed medical histories, and administered lifestyle surveys over time without intervening in participants' behaviors.
Researchers conducted regular physical exams, collected detailed medical histories, and administered lifestyle surveys over time without intervening in participants' behaviors.
Researchers conducted laboratory experiments to measure the impact of specific variables on heart health.
Researchers conducted laboratory experiments to measure the impact of specific variables on heart health.
Researchers placed participants in a controlled environment to monitor their responses to simulated health scenarios.
All Answers 1
Answered by
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Correct choice:
- "Researchers conducted regular physical exams, collected detailed medical histories, and administered lifestyle surveys over time without intervening in participants' behaviors."
Why:
- An observational study means researchers observe and measure participants’ exposures and outcomes without assigning treatments or manipulating variables. The Jackson Heart Study followed participants over time (a prospective cohort design), collecting exams, histories, and survey data but not randomly assigning interventions or placing people in controlled experimental conditions. That distinguishes it from randomized controlled trials, laboratory experiments, or simulated-control experiments.
- "Researchers conducted regular physical exams, collected detailed medical histories, and administered lifestyle surveys over time without intervening in participants' behaviors."
Why:
- An observational study means researchers observe and measure participants’ exposures and outcomes without assigning treatments or manipulating variables. The Jackson Heart Study followed participants over time (a prospective cohort design), collecting exams, histories, and survey data but not randomly assigning interventions or placing people in controlled experimental conditions. That distinguishes it from randomized controlled trials, laboratory experiments, or simulated-control experiments.
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