Experiment & Placebo

The experimental group is:

• Study in which neither the experimenter nor the subjects know if the subjects are in the experimental or control group

• study in which the subject do not know if they are in the experimental group or control group

• subjects in an experiment who are not subjected to the independent variable and may receive a placebo treatment

• the group to which the researchers manipulate the independent variable

They are attempts to establish a cause-and-effect relationship between two variables by manipulating one variable.

• Observations

• Experiments

• Correlations

• Self-reports

In an experiment, it is the group that is not exposed to the treatment contrasts with the experimental group and serves as a comparison for evaluating the effect of the treatment.

• group of participants

• matched pairs group

• experimental group

• control group

The experimental factors that is manipulated.

• Control variables

• experimental conditions

• independent variables

• dependent variables

The outcome factor the variable that may change in response to manipulations of the independent variable.

• extraneous variable

• dependent variable

• independent variable

• control variable

In an experiment, the _________________ variable is tested by the researcher to observe its effect(s) on the _________________ variable.

• A.independent; dependent

• B.first; second

• C.dependent; independent

• D.research; results