Statistical significance

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Trying to do a research paper. One of my potential sources says “group a scored slightly, but significantly worse than group b”. I don’t understand how you can score slightly but significantly worse. Googled that phrase and it sounds like the source means “statistically significant”.

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Anonymous 0 Comments

It means the difference is small but large enough that it can’t be chalked up to randomness.

Take a bunch of different groups and give them the same test and you’ll see slight differences between the scores, but in general the average will be more or less the same if you have enough people.

Group A and B presumably had some differences and they were testing to see what difference it makes in the test results. Maybe one group smokes weed and the other doesn’t, I don’t know.

The result being significant means that they’re confident that the difference between the groups was caused by that change (smoking or not smoking weed, or whatever it actually was) and not by random chance. Therefore they can be confident that the factor they changed does influence test results.

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