Random assignment of participants to treatment or control groups is important because it distributes ____ equally among study groups.
A)confounding variables
B)men and women
C)subjects with different ethnic backgrounds
D)consequence factors

Question

Quizplus · Accepted Answer

Random assignment of control groups helps to minimize the impact of confounding variables, which could affect one group more than the other and lead to inaccurate conclusions about the effectiveness of the treatment. Random assignment helps to ensure that these variables are distributed equally among the study groups, reducing bias and increasing validity of the study results. The other options (B, C, and D) are not directly related to the need for random assignment of control groups.

Random Assignment of Participants to Treatment or Control Groups Is