Which one of the following statements is NOT true?

As contemporary research often involves a range of specific
      skillsand sophistication rarely found in one person, collaborative
      research is often necessary for the successful completion of a
      research study.
Researchers who collaborate outside a department may be given
      less of a voice in curricula decisions than are those whose
      research is focused within one department.
There is potential incongruity between university practices that
      encourage collaborative research but that value independent work
      in awarding tenure or promotions.
Very little of today's collaborative research is interdisciplinary.
All of the above are true.