Independent and Dependent Variables In a true experiment, an experimenter ____ the independent variable and ____ the dependent variable.
A)manipulates; measures
B)measures; manipulates
C)selects; manipulates
D)selects; measures

Question

Quizplus · Accepted Answer

In a true experiment, the experimenter manipulates or changes the independent variable, and then measures the effects or changes in the dependent variable. This manipulation of the independent variable is what allows for the demonstration of cause-and-effect relationships, which is a key characteristic of a true experiment. Therefore, choice A is the best answer as it accurately describes the role of the researcher in a true experiment.

Independent and Dependent Variables in a True Experiment, an Experimenter