A key aspect of an experiment that is missing in other research designs is
A)description of the phenomenon of interest.
B)random assignment.
C)explanation of why a relationship exists.
D)prediction of the effects of differences in variable on another.

Question

Quizplus · Accepted Answer

Random assignment is a key aspect of an experiment that is missing in other research designs. Random assignment helps to control for extraneous variables and ensures that the groups being compared are as similar as possible except for the manipulated variable. This allows for a causal inference to be made about the relationship between the manipulated variable and the outcome variable.

A Key Aspect of an Experiment That Is Missing in Other