What evidence is there to support the existence of a fifth stage of cognitive development?

The proposed fifth phase of cognitive development which is the postformal thought. It is portrayed by issue finding that incorporates useful, adaptable speculation in suspicion of issues. Proof for a fifth stage might be seen in the capacity to utilize feeling and rationale to address useful issues, an intellectual aptitude past that of young people. Moreover, there are sure methods for intuition in adulthood that are not watched before, moving grown-ups to another intellectual level, contingent upon their life conditions. Questions raised incorporate whether the intellectual stages exist by any means, particularly in adulthood. Another arrangement of psychological aptitudes does not present itself in adulthood but rather the incorporation of feeling and rationale does.

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