**Thank you for participating in the experiment!**

We are interested in differences between how people with different kinds of mathematics knowledge think about numbers, and how this information is represented in the mind. Numbers have many properties: they can be of different magnitudes, even, odd, prime, squares, square roots, multiples of 10, and so on. By asking many people to make judgments about number similarities, we can gain an understanding of how people with different math experiences think about number relations. We can then explore how this information can be used in an educational context in order to help improve the way people learn and understand math concepts.

If you have questions about this study, please contact the primary experimenter, April Murphy (admurphy2@wisc.edu), or the lab director, Professor Tim Rogers (ttrogers@wisc.edu).