You need a control group and an experimental group.
Dependent and independent variable
The two groups in a controlled experiment are the experimental group, which receives the treatment being tested, and the control group, which does not receive the treatment and serves as a baseline for comparison.
The variable being tested. The difference between the two groups after the experiment will ideally show some effect by the variable element.
If you were doing an experiment to determine the effects of x ray on seed germination what variables woild you need to keep the same for all test groups?
Yes
There are two different types of groups in the experiment, a control group and a experimental group
An important measure for controlling bias (APEX)
In a controlled experiment, there are two groups. The control group is a group that nothing happens to. The experimental group is the group that you subject to the variable with which you are experimenting. At the end of the experiment, you test the differences between the control group, for whom nothing happened, and the experimental group, which received the variable. The difference (or similarities) between the two groups is how your results are measured.A control group is the group used for comparison in an experiment. One group receives the treatment that is being tested by the experiment; another group (the control group) has the exact same controlled environment, but does not receive this treatment. The effectiveness of the treatment can then be established by comparison with the control group.
you can have two dependent variables because you need two test groups with an independent variable in each so you can make sure that they are different in each because you don't want the same result in a science experiment
it is the groups in experiment
true
the control.constantif you make no changes, then its not called an experiment...The control is variable