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Discovering Psychology: Updated Edition

Investigation: Sample and Variables

Now that you are following the scientific method and ensuring objectivity, you can next clearly define who and what you will study.

Click on the links to learn more, then test your knowledge:

When you complete the quiz below, explore Methodology next.

Question 1: The participants selected for your study make up a group called the ___.

Question 2: If, in your study, you measure participants against themselves, you are using ___.

Question 3 Using a double-blind-control allows you to ___. a. b. c. d. Answer: Correct. Using a double-blind-control allows you to eliminate experimenter bias.