Assertion: experiment's variable | /r/HasProperty | manipulated by the experimenter
Facets:
Source sentences:
text: The independent variable is manipulated by the experimenter, and the dependent variable is measured.
text: The independent variable is the one being manipulated by an experimenter.
text: The independent variable is the variable that is controlled and manipulated by the experimenter.
text: The independent variable is manipulated by the experimenter, and the dependent variable is measured.