Participant Variables that Affect Internal Validity


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question 1 of 3

High internal validity means that the researcher can prove that __________ cause(s) changes in the dependent variable.

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1. Sally is doing a study on whether exercise affects body weight. Which of the following would be an example of an extraneous variable in this study?

2. Mark notices a dramatic difference in the behavior of his subjects from week one to week two. Mark suspects that his subjects have figured out what he is studying and have adjusted their behavior accordingly. This is an example of which type of extraneous variable?

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About This Quiz & Worksheet

The quiz and worksheet will cover participant variables that affect internal validity. Questions will address things like variables and their mathematical characteristics.

Quiz & Worksheet Goals

Test your knowledge of the following topics:

  • High internal validity
  • Extraneous variables
  • Demand characteristics
  • Types of extraneous variables

Skills Practiced

You'll be practicing the following skills:

  • Critical thinking - apply relevant concepts to examine information about dependent variables in a different light
  • Problem solving - use acquired knowledge to solve practice problems on extraneous variables
  • Knowledge application- use your knowledge to answer questions about participant variables that affect internal validity

Additional Learning

With the lesson entitled Participant Variables that Affect Internal Validity you will be able to learn more. Objectives from the lesson include the following:

  • Define internal validity
  • Understand different types of bias
  • Determine what an extraneous variable is