A(n) __________ occurs when the influence of one independent variable depends on the level of another independent variable included in the design.
a. error
b. interaction effect
c. main effect
d. practice effect
Question 2
Davida has agreed to participate in a psychological study to earn extra credit in her introductory psychology course. When she arrives for the study, she notices that the testing room is white, very quiet, and highly controlled.
The researcher randomly assigns her to a testing condition by flipping a coin. Most likely, Davida appears to be participating in a(n)
a. descriptive study.
b. correlational study.
c. experiment.
d. quasi-experiment.