عبارت rigor redefined در این جمله چه معنایی داره ؟

Question

Tony Wagner (2008) talks about “rigor redefined” and suggests that such
skills as critical thinking, problem solving, collaboration and leadership,
agility and adaptability, initiative and entrepreneurialism, effective oral
and written communication, accessing and analyzing information, curiosity and imagination are necessary for learning in school, in the workplace, and in life.

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