Why is power analysis important in research?
Power analysis helps researchers determine the sample size needed to detect an effect, ensuring valid results.
What happens if I don't conduct a power analysis?
Without power analysis, you risk having too small a sample size, leading to inconclusive or misleading results.
Can you explain the concept of statistical power?
Statistical power is the probability of correctly rejecting the null hypothesis when it is false, typically set at 0.8.
How do I perform a power analysis?
You can perform a power analysis using software like G*Power or R, which require inputs like effect size and alpha level.
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