@ashley676 I know someone who didn’t have any research experience & was accepted. I also talked to an admissions officer at UPenn over the summer, and he said they like to see experience like that because it shows that you’ve actually explored your major and know what you’re getting yourself into. Again, it prob won’t hurt not to have it and I agree with the post above as, in my area, you aren’t allowed to shadow in hospitals and such if under 18 (most HS underclassmen), so, it’d be pretty unfair if it was deducted.