Nonexperimental Research: 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.

'Based on our correlation, we can determine that excess sugar causes people to be overweight'

What is wrong with this statement?

Question 2 2. Which option sets the questionnaire apart from other survey techniques?

Question 3 3. Which answer would make INTERVIEW an appropriate choice?

Question 4 4. Which of the following best describes a scatterplot?

Question 5 5. A researcher is doing a statistical analysis of his data and has concluded that the variables 'time spent during training' and 'company revenue' have a correlation of r=1, thus concluding that there is a positive perfect correlation between these two variables. Why did the researcher likely make a mistake?

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Question 6 6. Which of the following is FALSE about surveys?

Question 7 7. Jane is conducting a survey, and her questions are in the form as follows: 'Are you satisfied with your job? Yes or No.' Why is such a survey NOT suited for all forms of research?

Question 8 8. If two variables are correlated, then we can say that the variables have _____.

Question 9 9. To plot a scatterplot, the researcher must have:

Question 10 10. The correlation coefficient explains which of the following?

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Question 11 11. Theresa is studying the relationship between the amount of hours studied and grade point average. A subject's previous familiarity with the material being studied would be an example of which of the following?

Question 12 12. Wanda conducts a study and finds that shoe sales and doll sales are negatively correlated. She is worried that some other variable is affecting her findings. Wanda is concerned about which of the following?

Question 13 13. Why can using a semantic differential scales have an adverse impact?

Question 14 14. Which of the following BEST completes the following sentence: Correlation research is mainly focused on _____.

Question 15 15. Why do survey researchers often use public areas?

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Question 16 16. If the correlation between the amount of time you study for a test and the grade you receive on that test is r=0.815, which of the following statements best summarizes this correlation?

Question 17 17. Which of the following best describes why the correlation coefficient is important?

Question 18 18. Susan conducts a study and is able to make a scatterplot from the data she gathers. Susan's study is chosen to be published in a scientific journal, but does not include her scatterplot. Which of the following explains why Susan chooses not to include her scatterplot in the scientific journal?

Question 19 19. In descriptive research, what is a method of viewing and recording participants?

Question 20 20. R=0 means

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Question 21 21. What does sigma (shown below) mean in terms of mathematics?

Question 22 22. Which of the following would you carry out if you wish to conduct descriptive research on the effects of alcohol on sleep?

Question 23 23. A numerical representation of the relationship between two variables is called the _____.

Question 24 24. Mary is studying the relationship between hours slept and number of puzzles solved. She collects the following data where the x-value is hours slept and the y-value is puzzles solved: (5,3), (7,8), (4,6). Mary wants to calculate a Pearson coefficient, so she begins by organizing her data as shown below. Which of the following best describes the mistake that Mary made?

Question 25 25. Which of the following describes a positive correlation?

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Question 26 26. Which of the following is true concerning the correlation coefficient?

Question 27 27. Stapel scales are unique because they have positive and negative scores, but they do NOT have a _____.

Question 28 28. The primary strength of survey research is:

Question 29 29. You are a research assistant for an important study. The lead psychologist on the study hands you the following data and asks you to find the Pearson coefficient. Which of the following numbers would you use for your 'n' value?

Question 30 30. When a researcher finds the correlation coefficient, which of the following does he find?

Nonexperimental Research: 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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