Final answer:
Moral Foundations Theory uses evidence from emotions, behavior, and alternative ethical traditions to support the idea that moral judgment is not solely based on rational reasons.
Step-by-step explanation:
Moral Foundations Theory uses various pieces of evidence to support the idea that moral judgment is not solely based on rational reasons. One piece of evidence is the role of sentiments and emotions in moral decision-making. David Hume argued that morality is based on how we feel about certain matters, rather than deriving it from factual or rational reasons. For example, a person may feel a moral obligation to help a homeless person, even if it doesn't seem rational in terms of self-interest or long-term consequences.
Another piece of evidence comes from the disconnect between moral reasoning and moral behavior. While individuals may have sophisticated reasons for certain choices, their actual behavior might differ due to simpler, pre-conventional reasons. People might claim to have moral reasons for their actions but fail to follow through with them, which suggests that moral judgment is not solely based on rationality.
Lastly, various ethical traditions offer alternatives to teleological and deontological approaches that emphasize reason as the foundation for morality. These alternative traditions, such as those based on emotions or virtues, indicate that moral judgment is influenced by factors beyond rationality.