A sample that is treated exactly like the other experimental groups except that the variable is not applied to it is a(n) _____. (1 point)

observation
variable
control
hypothesis

Question

A sample that is treated exactly like the other experimental groups except that the variable is not applied to it is a(n) _____.  (1 point)

    observation
    variable
    control
    hypothesis

anonymous · Answer

This question is asking us about the part of the experiment that ISN'T changed, 
and has NOTHING done to it, in any way. 

We call that part the "control."