If Helen does not cheat on tests because she feels it is important to do her best on her own merit, she is probably functioning at which level of moral development?

Answer: Postconventional level

Explanation: The Postconventional stage of moral development is the third and final level of Kohlberg's moral development taxonomy. Individuals at this stage or level are more guided by ethical rights, values, duties as well as moral principles.

Helen decided that the moral thing to do is not to cheat in the test but do her best on her own merit, with this moral principles guiding her, she is probably at the postconventional level of the Kohlberg's moral development taxonomy.

Postconventional Level of Moral Development

Explanation:

when a person develops his or her own personal set of ethics and morals that guides their behaviour, such a person is said to possess a postconventional level of moral development. It implies that a person's sense of morality is defined in terms of more abstract principles and values. These principles could be principles that entails basic human rights such as life, liberty, and justice. As evident in the case of Helen her moral principles, ethics and values has led her to believe that all she needs to do is study hard and give her best in her test and get her desired grades on merit.