A demographic trait varies around the world and in various literatures no study has demonstrated many statistical associations between the identified variables. Studies on self-esteem are then hampered by methodological problems and show that self-esteem changes during childhood. Problems arise after having difficulty assessing when these changes affected self-esteem in children and adolescents were cross-sectional rather than longitudinal (Crago et al, 2009). In one of the few longitudinal studies conducted, Brown and colleagues found that self-esteem begins to decline at age 11 in white girls, but remains relatively stable in black girls between ages 9 and 14, and declines through middle age. adolescence 13-16 years (Crago et al., 2009). The study also concluded that self-esteem changes over time and that factors that influence self-esteem also change from elementary to middle school.