A study was conducted to determine if drinking a cup of tea before bedtime helped with falling asleep faster. After randomly assigning 50 people to one group that received tea before bedtime and 50 other people to a group that did not receive tea before bedtime, the researcher then compared the amount of time it took for each person to fall asleep. This is an example of ... A statistic An experiment A confounding variable An observational study Question 2
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The study involves randomly assigning participants to two different groups: one that receives tea before bedtime and one that does not. Show more…
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One study took a group of adults and randomly divided them into two groups. One group was told to drink tea every night for a week, while the other group was told not to drink tea that week. The researchers then compared when each individual fell asleep from each. This is an example of an observational study.
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