1. Compare and contrast the following terms:
1. test-retest reliability with inter-rater reliability.
2. Content validity with both predictive validity and construct validity .
3. Internal validity with external validity.
Can a test be reliable without being valid? Can a test be valid without being reliable? Explain.
2. What components differentiate experiments from the non-experimental methods discussed in Modules 2 and 3? How do experiments do a better job of assessing causality?