Why is random assignment used in between-subjects experimental designs?
A)to hold participant characteristics constant
B)to ensure a nonbiased sample
C)to ensure anonymity of the research participants
D)to eliminate systematic differences between the groups

Question

Why is random assignment used in between-subjects experimental designs?​
A)​to hold participant characteristics constant
B)​to ensure a nonbiased sample
C)to ensure anonymity of the research participants
D)​to eliminate systematic differences between the groups

Quizplus · Accepted Answer

Random assignment is used in between-subjects experimental designs to eliminate systematic differences between the groups, ensuring that each group has an equal chance of being exposed to the treatment or control condition. This helps to control for extraneous variables that could affect the outcome of the study and ensures that any differences between groups can be attributed to the treatment or intervention being studied.

Why Is Random Assignment Used in Between-Subjects Experimental Designs?​

Why Is Random Assignment Used in Between-Subjects Experimental Designs?