Which of the Following Is an Advantage of Independent-Groups Designs

Multiple Choice

Which of the following is an advantage of independent-groups designs?

A) Independent-groups designs have reduced error variability compared to correlated-groups designs.
B) Independent-groups designs have more statistical power than correlated-groups designs.
C) Independent-groups designs have fewer degrees of freedom than correlated-groups designs.
D) Independent-groups designs are easier to plan and execute than correlated-groups designs.