how to differentiate Methodical and Individualist investor

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If the q does not use simple words like 'she does not listen to his adviser', how to tell whether she is methodical or individualist?

The answer to a question says:

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Barbara can be clearly classified as an Individualist Investor whereby decisions are based on thinking, rather than feeling. Having been trained as a nurse where the methodical study of the human anatomy is required, she would not be afraid to do her own research work on her investments and would even question recommendations and conclusions made by her investment advisors. She is also less risk averse because she understands the results of her decisions, particularly when she is involved in treating hospital patients and customers using a laser.

Cautious investors base their investment decisions on feeling and are more risk averse. Methodical investors base their investment decisions on thinking and are also more risk averse.
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The justification is just Barbara is a nurse, so she is not risk averse?!!!!! no way