a. You are developing a new studying program that determines what students will prefer. You administer the test several times during the year to ascertain students' preferences. To test the reliability of the data, you are supposed to assess the test-retest of the data (Fall and Spring results). Would you call this a reliable test? Why or why not?

b. Define and explain one type of each of the following: validity and reliability. Determine when each type you deifned could be used?