UNIT 4 CHALLENGE 4.2: Interpreting
Thirty minutes of exercise per day can reduce your blood pressure.
Which of the following is a guideline for establishing causality?
a.) Check if lower blood pressure is present or absent when
exercise is present or absent.
b.) Control the number of minutes of exercise and blood
pressure to get the same results.
c.) Look for evidence that smaller amounts of exercise produces
a reduction in blood pressure.
d.) Perform a randomized, controlled experiment.
WER
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