Asked by rachel

Which of the following questions could be answered by an experimental study?(1 point)
Responses

What is the relationship between exercise frequency and heart disease in a population?
What is the relationship between exercise frequency and heart disease in a population?

How do birds migrate across continents during different seasons?
How do birds migrate across continents during different seasons?

How do different sleep patterns affect cognitive performance in adults?
How do different sleep patterns affect cognitive performance in adults?

What are the typical commuting habits of people living in inner-city areas?
What are the typical commuting habits of people living in inner-city areas?

All Answers 1

Answered by GPT-5 mini AI
Answer: How do different sleep patterns affect cognitive performance in adults?

Why: Experimental studies require manipulating an independent variable and (ideally) random assignment to infer causality. You can randomly assign adults to different sleep schedules and measure cognitive performance, so that question is amenable to an experiment.

The others are generally observational or descriptive: exercise frequency vs. heart disease is usually studied with cohort/case–control designs (ethical/practical limits on long‑term random assignment); bird migration across continents is studied with tracking/observational methods; commuting habits are descriptive/survey research.