Chapter 9: Research Design Explained

You are now at the Chapter 9 section of the book's student Web site.

Here you can

Review and improve your understanding of the material	Quiz yourself	Apply this information	Get help
See how the key terms are connected by looking at this concept map.	Test yourself on the key terms with this matching test Play this drag and drop matching game to see if you know your threats to internal validity. Test yourself using flashcards.	If you have a fantasy baseball or football team, see how knowing about regression toward the mean can help you win. Before investing, you should consider regression toward the mean.	Help with answering the end-of-chapter exercises.
Go through an online tutorial on internal validity Go through our tutorial looking at the weaknesses of four designs. Go through our murder mystery tutorial on internal validity (highly recommended!) Review by studying the chapter summary testing yourself on the key issues testing yourself on the chapter objectives reviewing the chapter glossary Being able to answer these review questions before taking a quiz or test over Chapter 9	Take some practice quizzes Short, general quiz More specific quizzes Take 12-item quizzes over the internal validity of before-after designs and two-group designs (the first part of the chapter). Quiz A Quiz B Take 8-item quizzes over the eight threats to internal validity (the second part of the chapter). Quiz A Quiz B Take 7-item quizzes over random assignment and the tradeoffs between internal and external validity (the third part of the chapter). Quiz A Quiz B	Humorous example of making a wrong cause-effect conclusion ("The Onion" presents "proof" that Tommy is responsible for millions of divorces). A researcher claims his study shows that vaping causes heart attacks, but does the study really show that?

Review and improve your understanding of the material

Quiz yourself

Apply this information

Get help

See how the key terms are connected by looking at this concept map.

Test yourself on the key terms with this matching test

Play this drag and drop matching game to see if you know your threats to internal validity.

Test yourself using flashcards.

If you have a fantasy baseball or football team, see how knowing about regression toward the mean can help you win.

Before investing, you should consider regression toward the mean.

Help with answering the end-of-chapter exercises.

Go through an online tutorial on internal validity

Go through our tutorial looking at the weaknesses of four designs.

Go through our murder mystery tutorial on internal validity (highly recommended!)

Review by

studying the chapter summary
testing yourself on the key issues
testing yourself on the chapter objectives
reviewing the chapter glossary
Being able to answer these review questions before taking a quiz or test over Chapter 9

Take some practice quizzes

Short, general quiz
More specific quizzes

Take 12-item quizzes over the internal validity of before-after designs and two-group designs (the first part of the chapter).
- Quiz A
- Quiz B

Take 8-item quizzes over the eight threats to internal validity (the second part of the chapter).
- Quiz A
- Quiz B
Take 7-item quizzes over random assignment and the tradeoffs between internal and external validity (the third part of the chapter).

Humorous example of making a wrong cause-effect conclusion ("The Onion" presents "proof" that Tommy is responsible for millions of divorces).

A researcher claims his study shows that vaping causes heart attacks, but does the study really show that?

Chapter 9 exercises

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