Author Question: ________ allows researchers to rule out differences among participants as the cause of differences ... (Read 102 times)

torybrooks · **on:** Jun 22, 2018

________ allows researchers to rule out differences among participants as the cause of differences in the dependent variable.

a. A factorial design
b. Measuring more than one dependent variable
c. Random sampling
d. Random assignment

Question 2

A researcher wants to examine the relationship between viewing television violence and behaving aggressively.

He has participants decide whether they would prefer to view a violent or a nonviolent film, and subsequently records the number of aggressive behaviors they show in a competitive game. The researcher cannot legitimately make a causal statement based on his findings, because the study

a. is low on mundane realism.
b. lacks random assignment.
c. has no cover story.
d. lacks psychological realism.