Final answer:
Sally is describing a personality trait called extroversion, a concept central to personality psychology. Extroversion involves outgoingness and social orientation, with extroverts drawing energy from being around others.
Step-by-step explanation:
When Sally describes herself as an extrovert, she is describing a key aspect of her personality. The terms extrovert and introvert were originally proposed by Carl Jung and are now fundamental concepts in personality psychology. Extroverts tend to be outgoing, sociable, and gain energy from social interactions, whereas introverts may appear quiet and reserved, or may enjoy social situations in different ways, drawing their energy from within. The balance between these traits contributes to self-realization and comprehensive personality development.
Understanding where one falls on the extroversion-introversion spectrum can also be part of self-assessment and fieldwork research, where individuals gather external opinions to compare with their self-perception. Trait theorists like Gordon Allport categorized human personality traits, including extroversion and introversion, into three levels: cardinal, central, and secondary traits. These traits together form a complete personality profile that can be assessed through various methods, such as the Myers-Briggs Type Indicator (MBTI), which measures four dichotomies including Introversion/Extroversion.