Which one of Gordon Allport's three types of traits has received the least amount of scientific support?

Question

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Although Allport's cardinal traits have been influential in the field of psychology, they have received the least amount of scientific support compared to his central and secondary traits. Cardinal traits are meant to be dominant traits that shape an individual's behavior, but they have been difficult to identify and measure in a consistent and reliable way.

Which One of Gordon Allport's Three Types of Traits Has