Check out our lab!Located on the George Mason University - Fairfax campus, our lab is where most of our studies are hosted. Toys and books for children of all ages in our family waiting room. Welcome to our lab! Studies usually take place in the ‘Planets’ or ‘Moon’ room. A child completing a commonly used measure of young children’s vocabulary skills, the Peabody Picture Vocabulary Test. Family waiting room The setup for one of our studies – there is a puzzle inside the box!