1. Explain the difference between Type I and Type II errors that can be made in significance testing. Which type of error has probability equal to alpha? 2. For the study reported in Figure 7.5, what...

1. Explain the difference between Type I and Type II errors that can be made in significance testing.

Which type of error has probability equal to alpha?

2. For the study reported in Figure 7.5, what type of research design is this study (see Chapter 4 for a review of research designs)?

3. A ____________ hypothesis is a directional hypothesis, whereas a ______________________ is not.