At Babson: The amount of credit a student earns depends on the course that the student takes. As long as the student passes the course they will receive all credit for the course they took.
At Olin: Olin courses are typically 4 credits. Credit information is included in each course descriptions. Babson credits count 1:1; i.e. a 3-credit Babson course counts for 3 Olin credits and a 4-credit Babson course counts for 4 Olin credits. A 1- or 1.25-credit Wellesley course counts for 4 Olin credits.
At Wellesley: Wellesley courses range from 0.5 - 1.25 units. Most courses earn 1 unit.