Final answer:
Intragenerational social mobility refers to the changes in a person's social status over their own lifetime, different from intergenerational mobility which occurs between generations of a family.
Step-by-step explanation:
Change in a social position within a person's own lifetime is called intragenerational social mobility. This type of social mobility reflects the shifts that occur in an individual's status as they accumulate successes or experience setbacks throughout their life. Whereas intergenerational social mobility is about the change in status from one generation to another within the same family, for instance, when a child surpasses the parents in education or job position.
Structural mobility refers to a change that affects a large group due to societal changes such as economic expansion or recession. On the contrary, intragenerational mobility is more about individual experiences. Finally, horizontal social mobility occurs when an individual changes jobs or roles without necessarily moving up or down the social hierarchy.