According to which theory can a person's rank within their family influence their personality and intelligence?

Birth Order Theory posits that a person's rank within their family can have a significant influence on their personality traits and intelligence levels. This theory suggests that the experiences associated with being the firstborn, middle child, or youngest child can shape an individual’s development in distinct ways. For example, firstborns are often seen as responsible and achievement-oriented due to the expectations placed upon them, whereas later-born children may be more rebellious or social due to their experiences in a family structure with established siblings.

This theory emphasizes the impact of family dynamics and how different roles within the family can lead to varying traits and behaviors. It reflects the idea that sibling relationships and the rank order can be as influential in shaping personality as other factors such as genetics or environment. Understanding Birth Order Theory can help explain interpersonal dynamics and differences in characteristics among siblings, making it a valuable framework for examining personality development.