for sure TEM-8,since all aspects are covered by tem-8 instead of sr.intepreter certifying test.
Pls note that I'm the FIRST person who replied your question and now pls find supplementary answers:
TEM-8 is for university student whose major in English only,say smaller scope and HIGHER VALUE-ADDED.
Sr.intepreter is for all people in the society including students.
...HR PROFESSIONAL
