What's the Difference Between Type and Trait?

Dario Ritin: People always ask, whell can you change your personality type over your life? And the best information we have at this time indicates that our cognitive preferences stay the same throughout our life. But trait, which is the expression of type, does change over a lifetime. He says there's something else in there, and i'm not quite sure what wordes for it. May be called, like paradimes.