Biology, 05.01.2022 05:10 genyjoannerubiera

Ming is having trouble sleeping and decides to participate in a study to determine whether a
certain medication helps people sleep. There are
30 volunteers, each of whom is assigned to 1 of 2
groups. Volunteers in group 1 are given the
medication, and volunteers in group 2 are given a
placebo (a pill with no medication). Which step is
important in order to ensure scientifically valid
results?

Answers: 1

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