Personality development encompasses the dynamic construction and deconstruction of integrative characteristics that distinguish an individual in terms of interpersonal behavioral traits. Personality development is ever-changing and subject to contextual factors and life-altering experiences. Personality development is also dimensional in description and subjective in nature. That is, personality development can be seen as a continuum varying in degrees of intensity and change. It is subjective in nature because its conceptualization is rooted in social norms of expected behavior, self-expression, and personal growth. The dominant viewpoint in personality psychology indicates that personality emerges early and continues to develop across one's lifespan. Adult personality traits are believed to have a basis in infant temperament, meaning that individual differences in disposition and behavior appear early in life, potentially before language of conscious self-representation develop. The Five Factor Model of personality maps onto the dimensions of childhood temperament. This suggests that individual differences in levels of the corresponding personality traits (neuroticism, extraversion, openness to experience, agreeableness, and conscientiousness) are present from young ages. Theories The development of personality is supported and attempted to be explained by theories of personality. Psychoanalytic Theory The Psychoanalytic Theory of personality was developed by Sigmund Freud. This theory consists of three main ideas that make up personality, the id, the ego, and the superego. The three traits control their own sections of the psyche. Personality is developed by the three traits that make up the Psychoanalytic theory conflicting. Trait Theory The Trait Theory of personality is one of the main theories in the study of personality. According to this theory, traits make up personality. Traits can be described as patterns of behavior, thought, or emotion. Some commonly accepted trait theories are the Big Five personality traits and the HEXACO model of personality structure. Generally, strong correlations are seen in the levels of any given personality trait in an individual when they are retested several years later. Traits tend to become more stable after young adulthood, and changes in these traits often follow some noticeable trends with age. For example, the trait Honesty-Humility is typically seen to decrease during teenage years, then steadily rise as the individual ages. The trait conscientiousness is generally seen to increase with age, however, the level of the facet perfectionism stays fairly consistent. Social Cognitive Theory The social cognitive theory of personality views personality development in terms of reciprocal interactionism, that is, a perspective that considers