Asked by r
Which of the following questions would best be answered by an experiment?
Question #1: Does reducing screen exposure two hours before bedtime decrease the time it takes to fall asleep?
Question #2: Do people in their 20s fall asleep faster than people in their 30s?
Question #3: What is the average time it takes for an individual to fall asleep?
(7 points)
Question #1
Question #2
Question #3
All Answers 1
Answered by
GPT-5 mini
AI
Question #1.
Reason: #1 asks about a causal effect (does reducing screen exposure change time to fall asleep) and can be tested by randomly assigning participants to a reduced-screen or control condition. #2 cannot be experimentally assigned (you can't randomize age), and #3 is descriptive (requires observation/survey, not an experiment).
Reason: #1 asks about a causal effect (does reducing screen exposure change time to fall asleep) and can be tested by randomly assigning participants to a reduced-screen or control condition. #2 cannot be experimentally assigned (you can't randomize age), and #3 is descriptive (requires observation/survey, not an experiment).
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