<p>Just as a warning, the Academic Guide says "If a student fails an Advanced Standing Exam, he or she may not retake the exam, but may register for the same subject in any subsequent term." So if you don't have all the credits necessary for sophomore standing, you can definitely take more ASEs during IAP, but you can't re-take exams you failed.</p>
<p>bsax, people generally take sophomore standing to either graduate in under four years, declare a major and get an advisor earlier, or circumvent the freshman credit limit (first-year students with sophomore standing have no credit limit second semester). One disadvantage of doing it is that people with sophomore standing are graded on the standard scale second term, not A/B/C/no record -- if you take sophomore standing and fail a class, it will go on your record.</p>
<p>About 10% of the class of 2007 accepted sophomore standing; I can't find numbers for 2008 or 2009.</p>