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Scientists use control groups so that they have something to compare or contrast their independent variable to. Without a control group, they wouldn't have anything to prove if their experiment had any important change. For example, a scientist is trying to prove that the bugs in his garden is affecting his flowers. His control group would be a set-up without the bugs. He would have another set-up WITH bugs. After some time, he would compare the two. If he didn't have a control group, how would he know that the bugs affected his flowers at all? Maybe the flowers were changing due to another factor, but how would you know?
What else can I help you with?
Why do scientists use control groups in expirements?
Scientists use control groups to show how something will change under normal circumstances.
What do scientist use to collect data for an experiment?
Set up an experiment and a control group, which has an independent and a dependent group
What Type of scientist who place things in groups?
bhbh
Writers use similes as literary devices for comparisons. Which factor in an experiment would a scientist use like a simile?
In an experiment, a scientist might use a control group as a simile to compare against the experimental group. Just as a simile highlights similarities between two different things to enhance understanding, the control group serves as a benchmark to measure the effects of the independent variable on the experimental group. This comparison allows the scientist to draw clearer conclusions about the impact of the changes made.
Scientist divide vertebrates into two main groups agree or disagree?
no
Why do scientist use classifacation?
=Scientist use classifacation to but living or nonliving organisms in small or big groups...==Scientist use classifacation to but living or nonliving organisms in small or big groups...==Scientist use classifacation to but living or nonliving organisms in small or big groups...=
Why do scientist use control groups in experiments?
Because it helps them know the results of the objects in the experiment and how they differ. This way the scientist knows which succeeded and which failed.
Why do scientists use control groups in expirements?
Scientists use control groups to show how something will change under normal circumstances.
How can a scientist do a controlled experiment if it is not possible use several different groups?
Not every experiment has control groups. If control groups are not feasible, you do what you can, and you may still learn something of interest. In the case of something like medical research, which really should have control groups, you can still use general statistical information to establish a baseline. People (for example) normally grow to a certain average height. We administer experimental drug X to our subjects, and they grow to a certain height which can be compared to the statistical average. This does tell us something.
How can a scientist do a controlled experiment if it is not possible to use several different groups?
Not every experiment has control groups. If control groups are not feasible, you do what you can, and you may still learn something of interest. In the case of something like medical research, which really should have control groups, you can still use general statistical information to establish a baseline. People (for example) normally grow to a certain average height. We administer experimental drug X to our subjects, and they grow to a certain height which can be compared to the statistical average. This does tell us something.
Why do you use a control group?
You use a control group to compare the results of the experimental group to. The control group has the "normal" results. After the experiment, you can tell if and what has changed from the control groups results
Which scientist organized animals into groups according to how they moved?
Aristotle is the scientist who organized animals into groups according to how they moved.
Whats one thing a scientist can do to help prove that an idea is true is do a experiment?
use a control
What is a role of a control group?
In conducting a scientific experiment, a scientist should have a control group and an experiment/treatment group. The scientist proposes a null hypothesis (null because it is intended to be disproven). The scientist then treats the two groups identically except the treatment group receives the treatment and the control group does not. Because the two groups were treated identically except for the treatment, any subsequent differences in the groups is (tentatively) attributed to the treatment. Thus,the control group is the group NOT receiving the treatment. For example, the scientist could propose that "fish will not die if they stop receiving food" (as a null hypothesis). The scientist then places two fish tanks full of similar fish into the same room, so that temperature, air pressure and light are equal. Then the scientist feeds one tank the recommended amount of fish food, while not feeding the other tank at all. After one week of this treatment, the scientist observes the tank receiving food (the control group) contains live fish while the group receiving the treatment (starvation) only contains dead fish. The scientist would then disprove the null hypothesis and conclude (tentatively) that fish do need food to continue living.
What do scientist use to estimate how long ago various groups of organisms diverged evolutionarily from one another?
carbon dating
What do scientist use to collect data for an experiment?
Set up an experiment and a control group, which has an independent and a dependent group
What scientist studies the behavior of human groups?
Sociologist.
