Chapter 2: Research Design Explained

You are now at the Chapter 2 section of the book's student Web site.

Here you can



Review and improve your understanding of the material Quiz yourself See how this material can help you Get help
Visualize the material by looking at this concept map.


A diagram to help you answer the question:   Which validity or validities you need?


A diagram to help you understand what the validities are, what obstacles are there to achieving each validity, and how each validity can be achieved.  

Do this crossword puzzle.

Answer these questions about a claim

Review validity by considering the validity questions that good detectives should ask

Test yourself on the key terms using one or more of these three quick matching tools Do not be fooled by popular therapies such as facilitated communication and therapeutic touch.

See how scientific thinking is mentally healthy thinking.

Scientific thinking and dealing with COVID.

Being a critical thinker.

Help with answering the end-of-chapter exercises
Review the material by Take some practice quizzes. To learn more about IRBs, getting IRB approval for research, and the ethical issues in conducting research, click on this "Ethics" link.

Review the difference between random sampling and random assignment

Understand the challenge of establishing internal validity from nonexperimental data by playing detective in this short story.

Study Chapter 2's slogans and take-home lessons

 See some examples of applied research

Do some interactive end-of-chapter exercises (multiple-choice format) dealing with validity  Fill out an interactive table to show you understand the three validities To learn how you could randomly assign participants, see pages 693-694 of your text or use the link below
Design a study

Chapter 2 exercises

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