What is a control group, a indpendent variable and a dependent variable?

2 answers

A control group is the group in an experiment that doesn't have anything change. For instance, if scientists are testing a headache medicine, the control group gets a placebo while the test group receives the product that they're testing.

Check these definitions for independent and dependent variables.

http://www.childrens-mercy.org/stats/definitions/iv.htm

http://www.childrens-mercy.org/stats/definitions/dv.htm
well it means i don't really know actually it doesnt make sense to me