Tag Archives: sample size

Methodolatry: An over-reliance on placebo-controlled trials

Randomized placebo-controlled trials (RCTs) are often referred to as the “gold standard” for clinical research, and they certainly are useful and powerful tools. They aren’t, however, the only reliable tools, nor are they always the best tools. Indeed, there are … Continue reading

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Most scientific studies are wrong, but that doesn’t mean what you think it means

When faced with scientific studies that disagree with them, many people are prone to claim that they don’t have to accept those studies because most scientific studies are actually wrong. They generally try to support this claim by either citing … Continue reading

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Basic statistics part 4: understanding P values

If you’ve ever read a scientific paper, you’ve probably seen a statement like, “There was a significant difference between the groups (P = 0.002)” or “there was not a significant correlation between the variables (P = 0.1138),” but you may … Continue reading

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Basic Statistics Part 3: The Dangers of Large Data Sets: A Tale of P values, Error Rates, and Bonferroni Corrections

In previous posts, I have explained the importance of having lots of data, but what I failed to mention was the dangers of analyzing these large data sets. You see, all real data has variation in it, and when you … Continue reading

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Basic Statistics Part 1: The Law of Large Numbers

Statistics are a fundamental and vital component of science, and a good grasp of statistics is absolutely essentially if you want to be able to understand scientific results. Nevertheless, the vast majority of people have little or no knowledge of … Continue reading

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