It has been said that laughter is the best medicine,but can research really substantiate or discredit this assertion? Imagine that you have been hired to find out if laughter is an effective treatment for the common cold.As you describe your experimental design,address the following questions: What are your independent and dependent variables? How will you operationally define your variables? Who will participate in your research,and how will you select them?

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The Answer of It has been said that laughter is the best medicine,but can research really substantiate or discredit this assertion? Imagine that you have been hired to find out if laughter is an effective treatment for the common cold.As you describe your experimental design,address the following questions: What are your independent and dependent variables? How will you operationally define your variables? Who will participate in your research,and how will you select them?

It Has Been Said That Laughter Is the Best Medicine,but