When you randomly assign participants in an experiment, it is easy to forget that (1)your random assignment is just one of many possible random assignments you could have ended up with and (2)which participants get assigned to which group could affect your results. This program helps you realize these two facts by simulating randomly drawing a number participants for an experiment in which the treatment has no effect.
You get to choose how many times the experiment is repeated.

The program will give you the mean of each group.
Note that the means will often differ, even though the treatment has no effect.

Try again

Back to Chapter 10 of Research Design Explained

How many replications of this study do you want? Pick a number between 2 and 10. Type the number in the box.