Relativism is the concept that points of view have no absolute truth or validity within themselves, but rather only relative, subjective value according to differences in perception and consideration. As moral relativism, the term is often used in the context of moral principles, where principles and ethics are regarded as applicable in only limited context. There are many forms of relativism which vary in their degree of controversy. The term often refers to truth relativism, which is the doctrine that there are no absolute truths, i.e., that truth is always relative to some particular frame of reference, such as a language or a culture (cultural relativism).
Anthropological relativism refers to a methodological stance, in which the researcher suspends (or brackets) his or her own cultural biases while attempting to understand beliefs and behaviors in their local contexts. This has become known as methodological relativism, and concerns itself specifically with avoiding ethnocentrism or the application of one's own cultural standards to the assessment of other cultures. This is also the basis of the so-called "emic" and "etic" distinction, in which:
Philosophical relativism, in contrast, asserts that the truth of a proposition depends on the metaphysical, or theoretical frame, or the instrumental method, or the context in which the proposition is expressed, or on the person, groups, or culture who interpret the proposition.
Methodological relativism and philosophical relativism can exist independently from one another, but most anthropologists base their methodological relativism on that of the philosophical variety.