<Tr> <Td> <Ul> <Li> Outline </Li> <Li> History </Li> <Li> Subfields </Li> </Ul> </Td> </Tr> <Ul> <Li> Outline </Li> <Li> History </Li> <Li> Subfields </Li> </Ul> <Tr> <Td> Basic types (show) <Ul> <Li> Abnormal </Li> <Li> Behavioral genetics </Li> <Li> Biological </Li> <Li> Cognitive / Cognitivism </Li> <Li> Comparative </Li> <Li> Cross-cultural </Li> <Li> Cultural </Li> <Li> Differential </Li> <Li> Developmental </Li> <Li> Evolutionary </Li> <Li> Experimental </Li> <Li> Mathematical </Li> <Li> Neuropsychology </Li> <Li> Personality </Li> <Li> Positive </Li> <Li> Quantitative </Li> <Li> Social </Li> </Ul> </Td> </Tr> <Ul> <Li> Abnormal </Li> <Li> Behavioral genetics </Li> <Li> Biological </Li> <Li> Cognitive / Cognitivism </Li> <Li> Comparative </Li> <Li> Cross-cultural </Li> <Li> Cultural </Li> <Li> Differential </Li> <Li> Developmental </Li> <Li> Evolutionary </Li> <Li> Experimental </Li> <Li> Mathematical </Li> <Li> Neuropsychology </Li> <Li> Personality </Li> <Li> Positive </Li> <Li> Quantitative </Li> <Li> Social </Li> </Ul>

Who is identified as the father of trait theory and why does he consider them important