An advantage of holding a variable constant rather than using random assignment to form your groups is that
A)holding a variable constant reduces error due to participant differences.
B)holding a variable constant is easier than randomization.
C)holding a variable constant guarantees that there is no systematic relationship between participant characteristics and the treatment conditions.
D)holding a variable constant ensures a nonbiased sample.

Question

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The Answer of An advantage of holding a variable constant rather than using random assignment to form your groups is that
A)holding a variable constant reduces error due to participant differences.
B)holding a variable constant is easier than randomization.
C)holding a variable constant guarantees that there is no systematic relationship between participant characteristics and the treatment conditions.
D)holding a variable constant ensures a nonbiased sample.

An Advantage of Holding a Variable Constant Rather Than Using