| I would agree with what CMM is saying.
First Barnard has to assess your academic ability. The SAT and ACT are admittedly a rough measures of a combination of ability and past exposure, but they have to have some idea before letting you transfer.
Second, Barnard is a difficult environment academically. There is no one to pump up your grades by doing really bad academically. They are all smart and work hard. (OK, there are a few party animals but not enough to help you)
So, the committee will want to see some indication of your academic performance. |