![]() The distinction has come to the forefront particularly on occasions when the content of science curricula in schools has been challenged-notably, when a school board in Georgia put stickers on textbooks stating that evolution was "a theory, not a fact, regarding the origin of living things." As Kenneth R. ![]() This mistake is one of projection: since we use theory in general to mean something lightly speculated, then it's implied that scientists must be talking about the same level of uncertainty when they use theory to refer to their well-tested and reasoned principles. (The word law applies to principles so firmly established that they are almost never questioned, such as the law of gravity.) The most common occurrence is when theory is interpreted-and sometimes even gleefully seized upon-to mean something having less truth value than other scientific principles. Since this casual use does away with the distinctions upheld by the scientific community, hypothesis and theory are prone to being wrongly interpreted even when they are encountered in scientific contexts-or at least, contexts that allude to scientific study without making the critical distinction that scientists employ when weighing hypotheses and theories. In non-scientific use, however, hypothesis and theory are often used interchangeably to mean simply an idea, speculation, or hunch, with theory being the more common choice. Because of the rigors of experimentation and control, it is understood to be more likely to be true than a hypothesis is. ![]() It is used in the names of a number of principles accepted in the scientific community, such as the Big Bang Theory. You ask a question, read up on what has been studied before, and then form a hypothesis.Ī hypothesis is usually tentative it's an assumption or suggestion made strictly for the objective of being tested.Ī theory, in contrast, is a principle that has been formed as an attempt to explain things that have already been substantiated by data. In the scientific method, the hypothesis is constructed before any applicable research has been done, apart from a basic background review. The Difference Between Hypothesis and TheoryĪ hypothesis is an assumption, an idea that is proposed for the sake of argument so that it can be tested to see if it might be true.
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