The quality or state of being corrigible; the capacity to be corrected or reformed.
From corrigible (adjective) plus the suffix -ness (Old English -nes), which converts adjectives to abstract nouns denoting qualities or conditions.
The 'corrigibleness' of a student—how willing they are to fix mistakes—often matters more for success than raw intelligence, which is why feedback and growth mindset are so powerful.
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