If Researchers Gave Participants Varying Amounts of a New "Memory

Multiple Choice

If researchers gave participants varying amounts of a new "memory" drug and then gave them a story to read and measured their scores on a quiz, the _____ would be the independent variable (IV) , and the _____ would be the dependent variable (DV) .

A) response to the drug; amount of the drug
B) experimental group; control group
C) exposure to the drug; quiz scores
D) researcher variables; extraneous variables