What is the purpose of random assignment in an experiment?
A. To reduce bias and increase validity
B. To ensure everyone gets the same treatment
C. To improve survey response rate
D. To group similar individuals

Random assignment reduces bias and increases the validity of experimental results by ensuring that the groups being compared are equivalent in various characteristics. This helps attribute any differences in outcomes directly to the treatments being tested. The process is essential for establishing credible conclusions in research. ;

Answered by GinnyAnswer | 2025-07-07

The purpose of random assignment in an experiment is to reduce bias and increase validity by ensuring that the groups being compared are equivalent. This process allows researchers to attribute any differences in outcomes directly to the treatments being tested. Therefore, the correct answer is option A.
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Answered by Anonymous | 2025-07-16