Final answer:
Most elderly people are indeed active with many interests, as evidenced by current trends among aging boomers. Cohort studies do not necessarily require diversity in attributes like age or gender. Activity theory promotes the idea that continued engagement and activity are beneficial during aging.
Step-by-step explanation:
The statement "Most elderly people have many interests and are active" is generally true. A cohort study mentioned in the question refers to a group of subjects who share a particular characteristic or experience within a defined period, but there is no indication that a cohort must be diverse in age, weight, gender, and health status, which makes the provided statement in the question about cohorts false. The term limits and their impact on the representation of women in state legislatures are subject to empirical scrutiny; existing research must be consulted to determine the truth of that statement. Elderly boomers, in particular, are reshaping the stereotype of aging by continuing to lead active lives into their senior years, prompting innovations in medical support for active aging. Activity theory, continuity theory, and disengagement theory all propose different approaches to aging, with activity theory supporting the idea that continued engagement and activity are beneficial for the well-being of the elderly, as exemplified by an older woman engaging in social and physical activities post-retirement. Lastly, voter turnout comparisons between the United States and other countries require statistical evidence to validate the claim regarding relative voting rates.