In studies about new medicines, researchers usually give one group of patients the medicine that is designed to treat an illness. They give another group of patients a placebo, which is taken the same way as the medicine but does not actually contain the ingredients of any medicine. Different medicines are tested in different experiments, but the placebos usually contain the same non-medical ingredients. If both groups of patients are healed, then researchers cannot be sure whether the medicine caused improvement, but if the group given the medicine is healed while the group given the placebo remains ill, researchers can conclude that the medicine causes the illness to go away.
Answers: 3
History, 22.06.2019 00:00
In the 1980s, more russians worked to encourage change in the government by a) establishing a new political system. b) rallying for democratic reforms. c) supporting the democratic system. d) resisting gorbachev’s reforms.
Answers: 1
History, 22.06.2019 05:30
When this was published in early 1776, many american colonists became convinced that they should act to form a new kind of nation independent from the rule of britain's "cruel" courts
Answers: 1
History, 22.06.2019 06:30
Today england’s government is encouraging tertiary economic activities ,including_to make up for the loss of industry
Answers: 1
In studies about new medicines, researchers usually give one group of patients the medicine that is...
Mathematics, 24.10.2020 01:50
Mathematics, 24.10.2020 01:50
Spanish, 24.10.2020 01:50
French, 24.10.2020 01:50
Mathematics, 24.10.2020 01:50
History, 24.10.2020 01:50
Mathematics, 24.10.2020 01:50
Computers and Technology, 24.10.2020 01:50
Mathematics, 24.10.2020 01:50
Mathematics, 24.10.2020 01:50
Health, 24.10.2020 01:50