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Which of the following statements is true?
Matched Pairs Design
A research design in which subjects are paired based on certain similarities, and each pair is treated differently to assess the effect of a variable.
Completely Randomized Design
An experimental design where all subjects are randomly assigned to treatments, ensuring each treatment is applied in an unbiassed way.
Five-point Scale
A measurement tool used in questionnaires to evaluate opinions or attitudes, often ranging from strongly agree to strongly disagree.
Blinding
A method in experimental design that prevents participants, experimenters, or both from knowing which intervention participants are receiving to reduce bias.
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