Learning Objectives

After studying this chapter, students should be able to

  • Compare quasi-experiments with true experiments and devise a study using a time-series and a nonequivalent-groups design
  • Assess the special problems associated with longitudinal research
  • Describe how cross-sectional research differs from longitudinal research
  • Explain how case study research differs from singleparticipant research
  • Assess the inferential limitations of correlational research