In a well-designed laboratory experiment, the only difference between the experimental and control groups should be the

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The factor hypothesized to be the cause (also known as the independent variable) is the only difference between the experimental and control groups in a well-designed laboratory experiment. This allows researchers to determine if the independent variable has a significant impact on the dependent variable. All other variables, including the setting and number of participants, should be controlled for in both groups to ensure that they do not influence the results.

In a Well-Designed Laboratory Experiment, the Only Difference Between the Experimental