Adolescence is a significant developmental period for adolescents due to the adaptations they are forced to conform to, including physical, emotional, cognitive, and social changes. Adolescents are assigned various developmental tasks that are often difficult to perform while dealing with stressors such as these changes. One task is to find oneself or one's identity. The adolescent's identity is a construction of drives, abilities, beliefs and individual history (Marcia, 1980). In addition to the search for personal identity, it is important for the adolescent to establish his own autonomy within his own social context. As their peer interactions change, so do their family relationships. However, the family context is very important regarding the development of the adolescent. The quality of the relationship between adolescents and their families greatly influences their self-esteem, ability to adapt and relationships with others. In contrast, the quality of the relationship between adolescents and their families is often influenced by the number, birth order, and age spacing of siblings within the family. It is critical that families understand this developmental period to help adolescents adapt to these various changes. This begs the question: What role does the family play in adolescent development? It is important to consider the environment in which a teenager grows up. Parenting styles help explain adolescent behavior. If an adolescent grows up in a safe and secure environment with parents who display authoritative characteristics that promote an open and warm atmosphere, adolescents are more psychosocially mature and competent (Yeh, 2003). These types of parents balance two very important tasks; help p...... middle of paper...... respondents, there is a risk of bias that could significantly distort the data I have collected. Finally, it would have been more useful to interview a sibling of the adolescent. I could then explore the perspectives of all three roles within the family: parent, sibling, and adolescent. From my research and interviews conducted, I have concluded that parents act as the most influential force during adolescent development. Further research is needed in the area of ​​the role of siblings in adolescent development. Adolescents exhibit behaviors based on influences that emerge from the home context. This environment incorporates many different factors including the number, age spacing, and birth order of siblings within the family. These factors, along with parental models, serve as a two-way relationship in adolescent development.