Individuals on a rehabilitation hospital were randomly assigned to a memory training group of a no-treatment control group. After 6 weeks of training, it was discovered that the experimental group's memory performance had improved whereas there was no change in performance of the control group. The experimenters concluded that memory training was successful. What alternative explanation might you suggest for the outcome? How would you change the experiment to eliminate this alternative?

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The Answer of Individuals on a rehabilitation hospital were randomly assigned to a memory training group of a no-treatment control group. After 6 weeks of training, it was discovered that the experimental group's memory performance had improved whereas there was no change in performance of the control group. The experimenters concluded that memory training was successful. What alternative explanation might you suggest for the outcome? How would you change the experiment to eliminate this alternative?

Individuals on a Rehabilitation Hospital Were Randomly Assigned to a Memory