Can personal dispositions be taught or are they inherent in an individual? Shoul

Can personal dispositions be taught or are they inherent in an individual? Should we be recruiting people with those dispositions to be school psychologists or can we teach people that don’t have those natural dispositions to have those skills? If so, how does a university graduate training program in school psychology (like ours at UHV) teach and measure these types of skills to produce successful school psychologists?
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