Experimental Research Questions
Random assignment plays a crucial role in enhancing the internal validity of experimental research. It ensures that participants are assigned to different groups or conditions in a completely random manner, eliminating any potential bias or confounding variables that could influence the results. By randomly assigning participants, researchers can be confident that any differences observed between groups are solely due to the manipulation of the independent variable and not any pre-existing differences among participants. This strengthens the internal validity of the study by allowing researchers to establish a cause-and-effect relationship between the independent and dependent variables.