As a freshman it is highly unlikely that you will be able to enter a research group. They are normally staffed by post-docs, Phd students, a few MS students and the occasional upperclass undergrad. However, OSU encourages undergraduate research and once you find an area that interests you, you need to find a faculty advisor for your project. see the attached link to help you. http://undergraduateresearch.osu.edu/getstarted/involved.html