What is the role of sample size in increasing the statistical power of experimental research?

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What is the role of sample size in increasing the statistical power of experimental research?

The sample size plays a crucial role in increasing the statistical power of experimental research. A larger sample size generally leads to higher statistical power, which refers to the ability of a study to detect a true effect or relationship between variables. With a larger sample size, the researcher has a greater chance of detecting small or subtle effects that may exist in the population. This is because a larger sample size reduces the impact of random variation or noise in the data, making it easier to identify true patterns or differences. Therefore, increasing the sample size enhances the reliability and generalizability of the findings, making the results more robust and trustworthy.