in an experiment to test the effects of sleep deprivation on test performance, a researcher who manipulates…

in an experiment to test the effects of sleep deprivation on test performance, a researcher who manipulates the amount of sleep that participants get is controlling the ____. \n\n○ dependent variable\n○ independent variable\n○ experimental group\n○ control group

in an experiment to test the effects of sleep deprivation on test performance, a researcher who manipulates the amount of sleep that participants get is controlling the ____. \n\n○ dependent variable\n○ independent variable\n○ experimental group\n○ control group

Answer

Brief Explanations:

In an experiment, the independent variable is the factor that the researcher manipulates. Here, the amount of sleep is being manipulated, so it is the independent variable. The dependent variable would be test - performance which is expected to be affected by the independent variable. The experimental group is the group that receives the treatment (in this case, different levels of sleep deprivation), and the control group is the group that does not receive the treatment.

Answer:

B. independent variable