The [ ] is what the researcher changes or compares; the [ ] is what the researcher measures.
A
The independent variable is what the researcher changes or compares; the dependent variable is what the researcher measures.
B
The dependent variable is what the researcher changes or compares; the independent variable is what the researcher measures.
C
The independent variable is what the researcher changes or compares; the control variable is what the researcher measures.
D
The control variable is what the researcher changes or compares; the dependent variable is what the researcher measures.