Final answer:
Julie's consistent positive feelings about herself, regardless of her successes or popularity, best illustrate self-concept. Self-concept is our thoughts and feelings about ourselves, encompassing both who we actually are (real self) and who we aspire to be (ideal self). A positive self-concept is nurtured by factors like unconditional positive regard from others.
Step-by-step explanation:
Julie's consistent positive feelings about herself, regardless of her successes or popularity, best illustrate self-concept. Self-concept refers to our thoughts and feelings about ourselves, including our beliefs about our abilities, values, and identity. It encompasses both the real self (who we actually are) and the ideal self (who we aspire to be).
Julie's positive self-concept indicates that she has a strong sense of self-worth and a healthy self-image, which are nurtured by factors like unconditional positive regard from others. According to humanistic theorist Carl Rogers, when we have congruence between our thoughts about our real self and ideal self, we experience greater self-worth and lead more fulfilling lives.
High congruence in self-concept can lead to benefits such as greater confidence, academic success, and willingness to explore new activities. It is an important aspect of healthy development and contributes to a positive sense of self.