Final answer:
The exact age at which global self-esteem tends to decline is not specified in the provided information, but it is suggested that it likely occurs during the adolescent years. Adolescence is a critical period for identity formation and facing social challenges, which can affect self-esteem.
Step-by-step explanation:
The question relates to the developmental changes in self-esteem that occur as children age. Global self-esteem tends to decline at certain points in childhood and adolescence due to various factors like peer acceptance and self-perception. Research indicates that children's self-esteem can be particularly vulnerable around the onset of adolescence. While the choices provided are ages 11, 14, 16, and 18, the correct age is not explicitly listed in the reference information provided.
According to the reference, school-age children are developing their sense of competence in comparison to peers, in line with Erikson's theory of psychosocial development. Furthermore, during early adolescence, individuals become more aware of their sexual orientation, and this period is also critical for identity formation and dealing with social roles and expectations, which can impact self-esteem. The full development of the frontal lobes by the age of 25 indicates that cognitive maturity continues into young adulthood, which might also influence self-concept and self-esteem.
Finally, self-esteem, according to the reference information, refers to the level of confidence in one's own abilities. Therefore, the decline in global self-esteem tends to occur during the teenage years when individuals are navigating complex social dynamics, identity formation, and self-awareness.