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LEARNING OBJECTIVES
- Define Type I and Type II errors, explain why they occur, and identify some steps that can be taken to minimize their likelihood.
- Define statistical power, explain its role in the planning of new studies, and use online tools to compute the statistical power of simple research designs.
- List some criticisms of conventional null hypothesis testing, along with some ways of dealing with these criticisms.
In this section, we consider a few other issues related to null hypothesis testing, including some that are useful in planning studies and interpreting results. We even consider some long-standing criticisms of null hypothesis testing, along with some steps that researchers in psychology have taken to address them.
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