Question: Dr. L. is planning a large-scale learning experiment. He would like to have 100 rats in one treatment group and another 100 in the other

Dr. L. is planning a large-scale learning experiment. He would like to have 100 rats in one treatment group and another 100 in the other group. Because he needs so many rats, he says, "Well, I can't test all these animals by myself. I'll ask Dr. P. to help me. He can run the animals in the one group while I test the animals in the other group." (a). Knowing what you know about confounding, is Dr. L.'s solution a good one? What can happen if one experimenter tests all the subjects in one group while another tests all the subjects in another group? (b). Given what you know about balancing procedures, work out a better plan for Dr. L

Reference: Experimental Psychology Chap 8 by Anna Meyers

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