![]() ![]() Hence, that word "theory" is very often contrasted to " practice" (from Greek praxis, πρᾶξις) a Greek term for doing, which is opposed to theory. In some instances the theory's credibility could be contested by calling it "just a theory" (implying that the idea has not even been tested). Instead of using the word "hypothetically", it is replaced by a phrase: "in theory". In those instances, semantically, it is being substituted for another concept, a hypothesis. The word theory or "in theory" is sometimes used erroneously by people to explain something which they individually did not experience or test before. ![]() To theorize is to develop this body of knowledge. : 131 A theory can be a body of knowledge, which may or may not be associated with particular explanatory models. Theories guide the enterprise of finding facts rather than of reaching goals, and are neutral concerning alternatives among values. Scientific theories are distinguished from hypotheses, which are individual empirically testable conjectures, and from scientific laws, which are descriptive accounts of the way nature behaves under certain conditions. Scientific theories are the most reliable, rigorous, and comprehensive form of scientific knowledge, in contrast to more common uses of the word "theory" that imply that something is unproven or speculative (which in formal terms is better characterized by the word hypothesis). Such theories are described in such a way that scientific tests should be able to provide empirical support for it, or empirical contradiction (" falsify") of it. In modern science, the term "theory" refers to scientific theories, a well-confirmed type of explanation of nature, made in a way consistent with the scientific method, and fulfilling the criteria required by modern science. The word has its roots in ancient Greek, but in modern use it has taken on several related meanings. Depending on the context, a theory's assertions might, for example, include generalized explanations of how nature works. ![]() Theories may be scientific, belong to a non-scientific discipline, or no discipline at all. The process of contemplative and rational thinking is often associated with such processes as observational study or research. For other uses, see Theory (disambiguation).Ī theory is a rational type of abstract thinking about a phenomenon, or the results of such thinking. For theories in science, see Scientific theory. ![]()
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