Question: Question Unit 1 Tutorials If you need help Question 6 O Mark this question A trainer is studying the effects of vitamin D on his

Question Unit 1 Tutorials If you need help Question 6 O Mark this question A trainer is studying the effects of vitamin D on his athletes. He has realized that there are many potential confounding factors, such as gender and age. To limit the effect of these confounding variables, he decided to first group two athletes together based on these variables (for example, two 21-year-old males). Then he randomly assigned one person to receive the vitamin D and the other to receive a sugar pill. hs What type of experimental design does this situation demonstrate? O Randomized Block Design Completely Randomized Design e OM. W hp

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