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