The increased use of factorial designs in research has come about largely because they are
A) less complicated to analyze.
B) more sensitive than other designs to the effects of the independent variable.
C) better at testing several causal hypotheses within a single design.
D) used by all important psychologists.
Question 2
In the dark-fears study,
A) the main effects seemed to be due to the interaction.
B) there were no main effects.
C) there were no interactions.
D) the main effects were not due to the interaction.