Final answer:
Inter-generational mobility pertains to changes in social or economic status across different generations within a family, not occupational changes over one's lifetime, so the statement is false.
Step-by-step explanation:
The statement that the term inter-generational mobility refers to movement into a different occupational category over a person's lifetime is False. Inter-generational mobility actually refers to changes in social class or economic status from one generation to the next within a family. For example, a person whose parents were middle class becoming an upper-class executive exhibits inter-generational mobility. Conversely, intra-generational mobility refers to changes in social class or economic status within a person's own lifetime, which could also be affected by occupational changes. Social mobility thus encompasses both inter-generational and intra-generational changes.