2. A construct in psychology refers to:

19. Pilot testing is important because it:

15. Content validity refers to:

2. The main purpose of experimental research is to:

2. Which of the following is NOT a type of nonexperimental research?

12. A negative correlation means that:

20. The primary purpose of survey research in psychology is to:

5. A cross-sectional study collects data:

18. Case studies and participant observation are examples of:

8. Which of the following is an example of correlational research?