In an experiment, if differences between groups of participants do appear after the independent variable is manipulated, these differences should be attributed to the independent variable

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In an experiment, the independent variable is the one that is manipulated by the researcher to observe its effect on the dependent variable. If differences between groups appear after this manipulation, it is logical to attribute these differences to the independent variable, assuming the experiment is well-controlled and other variables are accounted for.

In an Experiment, If Differences Between Groups of Participants Do