In a controlled experiment, the experimental group is the group that has one variable changed.
I believe the what your referring to is the independent variable (changed). This is chosen and it is the relationship between the change in the independent variable which will cause a change in the dependent variable.
The "independent" or "manipulated" variable is changed between the groups.
manipulated variable!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The independent variable is the one that is changed by the scientist.Control variables are kept unchanged in an experiment.Dependant variables are those that change as a result of the independent variable being changed.
Variable
can a independent variable be changed in a group
I believe the what your referring to is the independent variable (changed). This is chosen and it is the relationship between the change in the independent variable which will cause a change in the dependent variable.
The "independent" or "manipulated" variable is changed between the groups.
The one variable that is purposely changed to test a hypothesis is manipulated variable
The dependent variable is the one that changes.
The minipulated variable
the investigator only changes one variable in an experiment because they need to see how that one variable reacts. if you wanted to see how the dependent variable changed but changed the independent variable you would not see how the one variable reacts.
manipulated variable!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Manipulated variable
The one variable in an experiment that is changed to test a hypothesis.
Manipulated variable
The independent variable is the one that is changed by the scientist.Control variables are kept unchanged in an experiment.Dependant variables are those that change as a result of the independent variable being changed.