Possible Clues:

• Ph.D. program applicant's hurdle
• Univ. senior's hurdle
• Higher ed challenge
• Test for an MBA applicant
• Common B-school prerequisite
• M.A. seeker's hurdle, often
• SAT : college :: ___ : PhD program
• Test for some college seniors
• M.A. seeker’s hurdle
• M.A. applicant's test