External Validity: Homework Help Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Barkley conducts a study in which she puts subjects in a room with a plate of cookies and records how many cookies they eat during a certain period of time. Barkley is attempting to study the intelligence of her subjects. Which type of generalization is Barkley most obviously failing in this study?

Question 2 2. At the beginning of her study, Brandy administers a test to her subjects. Later in the study, Brandy begins to wonder if giving the initial test may have improved the performance of her subjects. About which threat to external validity is Brandy worried?

Question 3 3. Greg is doing an experiment in which he gives his group of subjects the first treatment, gathers data, gives the same group of subjects a second treatment, and then gathers data a second time. Which of the following might be a threat to the external validity of Greg's experiment?

Question 4 4. Mary conducts a study at her research lab, but wants to increase the external validity of her study. To do this, Mary asks her friend Barry if he would be willing to share his data from a similar study. Barry agrees, and Mary adds his data to hers. Which of the following is the method Mary is using to increase the external validity of her study?

Question 5 5. Which of the following describes an example of reactive arrangements?

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Question 6 6. Ralph wants to increase the external validity of the data he is collecting on the behavior of nurses, so he decides to set up a lab in a hospital. What method is Ralph using to increase external validity?

Question 7 7. What is the main goal of research?

Question 8 8. Ralph wants to increase the external validity of the data he is collecting on the behavior of nurses, so he decides to sit near the nurses' desk and record what he sees and hears without interfering. Which of the following best describes the method is Ralph using to increase external validity?

Question 9 9. What does giving up some control enable a researcher to do?

Question 10 10. Which of the following best describes nonreactive measures?

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Question 11 11. Harriet is sure that the results of her study, that took place in a controlled environment, can be applied to the real world. About which type of generalization does Harriet appear to be most confident?

Question 12 12. Mary really wants her new anxiety reducing drug on the market. Without realizing it, Mary selects subjects for her trial that already have lower anxiety. Which of the following threats to external validity is being shown in this situation?

Question 13 13. Laura wants to be sure that the results of her study can be generalized to the world at large. What aspect of her study is Laura looking to increase?

Question 14 14. Measurement timing is when _____.

Question 15 15. What should we conclude about a research study where only the independent variable affects the dependent variable?

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Question 16 16. From which research environment is a researcher best able to generalize research results?

Question 17 17. Which of the following conditions are true about a research project carried out in the field?

Question 18 18. Which of the following conditions are true about a research project carried out in a well-controlled laboratory environment?

Question 19 19. Which of the following statements best describes external validity?

Question 20 20. If a new drug for anxiety works only for the first four times that a person takes it, it is an example of _____.

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Question 21 21. Nancy wants to make sure that the results of her study can be generalized to the world at large. Which of the following elements of her study is she looking to increase?

Question 22 22. James wants to conduct a study to see if a certain drug lowers depression. It just so happens that the subjects chosen for the study already have a low level of depression. Which threat to external validity is being described by this situation?

Question 23 23. External validity is the extent to which:

Question 24 24. Nancy is worried that some of the subjects in her study changed their behavior because they knew they were in a study. For which of the following is Nancy expressing concern?

Question 25 25. Brad is worried that the treatment he is giving for his study is only working because the treatment is completely new to his subjects. Which type of threat may be affecting the external validity of Brad's study?

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Question 26 26. Vera is interested in predicting how well students will do in college math. In order to gather data, she gives a fraction test to different groups of students. Vera's assistant, Rob, expresses his concern that giving the students a test with only fractions will not tell them much about the students' more general ability in math. For which threat to external validity is Rob expressing his concern?

Question 27 27. Which of the following best defines external validity?

Question 28 28. Nancy is looking at the results of her experiment. Some of the results indicate that some of her data may be coming from reactions by her subjects to an element of the experiment rather than her intended independent variable. Which of the following may have impacted Nancy's study?

Question 29 29. A researcher has more control over variables when they do research in:

Question 30 30. External validity is the extent to which _____.

External Validity: Homework Help Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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