# How do you increase statistical power?

There are various ways to improve power:

- Increase the potential effect size by manipulating your independent variable more strongly,
- Increase sample size,
- Increase the significance level (alpha),
- Reduce measurement error by increasing the precision and accuracy of your measurement devices and procedures,
- Use a one-tailed test instead of a two-tailed test for
*t*tests and*z*tests.