GMAT Critical Reasoning (CR) | A recently published paper concludes that tenured professors or those

A recently published paper concludes that tenured professors or those on their way to tenure don’t enhance student learning as much as full-time lecturers outside the tenure system. Clearly, the difference between professors in the tenure system and other full-time lecturers has to do with the reward system for the former. The criterion for rewarding tenured faculty typically places a greater emphasis on research than teaching.

The above argument is based on doubts on the validity of which of
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