Final answer:
Lawrence Kohlberg is the moral development psychologist known for the theory that ethics is tied to political stability and poverty. He proposed a theory of moral development that includes three levels: preconventional, conventional, and postconventional.
Step-by-step explanation:
The moral development psychologist known for the theory that ethics is tied to political stability and poverty is Lawrence Kohlberg. He developed a theory of moral development based on his research with individuals of various ages. According to Kohlberg, moral development progresses through three levels: preconventional, conventional, and postconventional. In the preconventional stage, individuals are guided by their own self-interest, while in the conventional stage, they consider societal norms and expectations. The postconventional stage involves abstract reasoning and a recognition that legality and morality may not always align.