Final answer:
Researchers explain the higher teen pregnancy rate in the United States through a combination of factors such as poverty, violence, health issues, and lack of comprehensive sex education.
Step-by-step explanation:
Researchers explain the higher teen pregnancy rate in the United States than in other countries through a combination of factors. Poverty, violence, and health issues contribute to the problem, as well as the unwillingness of couples to have children in today's dysfunctional world. Additionally, the lack of comprehensive sex education in the United States compared to other countries plays a role in the higher teen pregnancy rate.