Imagine that you must develop a test to measure state anxiety. You develop a 30-question test. The scores of the normative sample on the two administrations of the test are listed below.

30-Point Test to Measure State Anxiety

Answer the following questions about the scatterplot and data:

1. What type of reliability assessment does this represent?
2. What conclusions can you draw about the reliability of the test based on the scatterplot? Why do you draw these conclusions?
3. Would you say this method of reliability assessment is the best to use to evaluate the reliability of tests to design the construct of state anxiety? Why or why not?