5: Experimental Research

What is the independent variable in an experiment?

• The variable the experimenter manipulates

• The variable the experimenter measures

• The presumed effect

• Any variable other than the dependent and independent variable

What is the dependent variable in an experiment?

• The variable the experimenter manipulates

• The variable the experimenter measures

• The presumed effect

• Any variable other than the dependent and independent variable

What are conditions in an experiment?

• The variable the experimenter manipulates

• The variable the experimenter measures

• The presumed effect

• Different levels of the independent variable to which participants are assigned

What is control in an experiment?

• The variable the experimenter manipulates

• The variable the experimenter measures

• Holding extraneous variables constant

• Any variable other than the dependent and independent variable

What are extraneous variables in an experiment?

• The variable the experimenter manipulates

• The variable the experimenter measures

• The presumed effect

• Any variable other than the dependent and independent variable

What does it mean to manipulate the independent variable?

• To change the level, or condition, of the independent variable systematically

• To change the level, or condition, of the dependent variable systematically

• To change the level, or condition, of the extraneous variable systematically

• To change the level, or condition, of all variables systematically

What is a confounding variable?

• The variable the experimenter manipulates

• The variable the experimenter measures

• An extraneous variable that varies systematically with the independent variable

• Any variable other than the dependent and independent variable

What is a treatment in an experiment?

• Any intervention meant to change people's behavior

• The condition in which participants receive the treatment

• The condition in which participants do not receive the treatment

• An extraneous variable that varies systematically with the independent variable

What is a control condition in an experiment?

• Any intervention meant to change people's behavior for the better

• The condition in which participants receive the treatment

• The condition in which participants do not receive the treatment

• An extraneous variable that varies systematically with the independent variable

What is a placebo in an experiment?

• A simulated treatment that lacks any active ingredient or element

• A treatment that is hypothesized to make the treatment effective

• A treatment that is identical to the treatment

• A treatment that has no effect on participants