Tuesday, November 5, 2019
Hypothesis or Theory (Tips on Scientific Language) - Get Proofed!
Hypothesis or Theory (Tips on Scientific Language) - Get Proofed!  Tips on Scientific Language  Science can be a dangerous thing in the wrong hands. According to one song, it can even cause blindness. And as a result, we need to be careful with science and scientific language. (And Thomas Dolby.)  Were not sure of Dolbys scientific qualifications, though. (Photo: Arthur Mouratidis/wikipedia)  The main problem (for us) is that scientists often use familiar terms in unfamiliar ways. And if you donââ¬â¢t know the scientific use of these words, itââ¬â¢s easy to make an error. So, to help out, weââ¬â¢re taking a closer look at three terms: ââ¬Å"hypothesis,â⬠ ââ¬Å"theory,â⬠ and ââ¬Å"significant.â⬠  Hypothesis (A Testable Idea)  In everyday language, we sometimes use ââ¬Å"hypothesisâ⬠ to refer to an educated guess. This is fairly close to how itââ¬â¢s used in the sciences, but it also has some specific requirements. A hypothesis should be:    An attempt to explain something that can be observed  Phrased in a way that means we can test it    Once a hypothesis has been tested, it can then be accepted or rejected depending on the results.  Theory (A Well-Tested Concept)  A theory is a proposed explanation of something. But when people say that something is ââ¬Å"just a theory,â⬠ they mean that it hasnââ¬â¢t been proven. This is because one sense of ââ¬Å"theoryâ⬠ is ââ¬Å"speculation.â⬠  However, in scientific writing, it means the complete opposite of this. A scientific theory is actually something that has been tested repeatedly and that is widely accepted as true. This makes it much stronger than a hypothesis and much, much stronger than pure speculation!  This doesnââ¬â¢t mean that a theory canââ¬â¢t be disproved, but you would need to show evidence that itââ¬â¢s untrue or suggest a better theory. A scientific theory is never ââ¬Å"justâ⬠ a theory.  Its just a theory supported by 160 years of research.  Significant (Unlikely to Have Happened by Chance)  To be ââ¬Å"significantâ⬠ is usually to be important or noteworthy. The opposite is to be ââ¬Å"insignificant.â⬠  In the sciences, though, ââ¬Å"significantâ⬠ typically refers to statistical significance. The results of a test are statistically significant if we can show that theyââ¬â¢re unlikely to be due to chance alone. The opposite of this is ââ¬Å"non-significant,â⬠ which means that the results could have been influenced by randomness.  In addition, keep in mind that something can be statistically significant without being noteworthy. Thereââ¬â¢s a statistically significant relationship between breaking eggs and making an omelet, for example, but this isnââ¬â¢t a hugely ââ¬Å"significantâ⬠ discovery in terms of being interesting or important.  Its a scientific breakthrough!  Other Scientific Language  The terms above are significant (in the everyday sense) because theyââ¬â¢re common in many scientific fields. As such, anyone reading or writing about science needs to know how theyââ¬â¢re used.  However, there are plenty of other examples. If a physicist is discussing a ââ¬Å"flavor of quark,â⬠ for instance, they could be talking about either subatomic particles or dairy products.  This is why we need to be careful with scientific language. And if you come across a familiar word being used in an unusual way, always double check its scientific meaning.    
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