Why are random assignments important in experiments?
They increase the accuracy of the experiment.
They eliminate the possibility of a lurking variable affecting the experiment.
They increase the cost efficiency of the experiment.
They decrease the time it takes to conduct the experiment.
Random assignments are important in experiments because they help to eliminate bias and ensure that the different treatment groups are equivalent at the start of the experiment. This increases the internal validity of the study and allows researchers to make more accurate inferences about the cause-and-effect relationship being studied. Random assignments also help to minimize the influence of lurking variables, as they distribute these variables evenly among the different groups. This ultimately leads to more reliable and valid results.
