In Schachter and Singer's classic experiment, participants were injected with epinephrine and either informed or not informed about the drug's effects. Participants were later asked to rate their own emotional states. Which alternative below correctly names and identifies a variable in this experiment
A)independent variable-whether participants were informed about epinephrine's effects
B)dependent variable-whether participants were informed about epinephrine's effects
C)control variable-participants' own emotional state
D)experimental variable-whether participants were informed about epinephrine's effects

Question

Quizplus · Accepted Answer

The independent variable in an experiment is the variable that is manipulated to observe its effect on the dependent variable. In Schachter and Singer's experiment, whether participants were informed about the effects of epinephrine was the condition that was manipulated, making it the independent variable.

In Schachter and Singer's Classic Experiment, Participants Were Injected with Epinephrine