3. a) What does it mean to manipulate a variable? b) What does it mean to control a variable? c) What is the difference between a controlled variable and a control group?|||lol... is this ur psyche HW?
to manipulate a variable is to change it
to control a variable is to keep it constant
a control group is your standard group.
The controlled variable is the item or items you add to the control group to make it slightly different.
lol.. next time do merara's HW on ur own :p
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