Statistics is an important means to collect data and understand the laws of things, and the production of statistical errors will inevitably interfere with our understanding. How to reduce the probability of errors and avoid these common statistical errors is the necessary prerequisite to improve the statistical work. According to the statistical knowledge we have learned, we often think that statistical errors are often caused by P value and statistical significance test. But the author of this paper does not think so, and puts forward a new point of view. The author believes that the most threatening errors to the effectiveness of research usually occur before researchers calculate the p value, that is, the statistical errors have little relationship with the p value and statistical significance. The author believes that the sources of statistical errors are due to improper design of research design, unclear research problems, poor data processing, lack of statistical thinking and digital literacy, and that these threats to science are even greater than the abuse of P value.<br>
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