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Descriptive Statistics in Psychology: 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. If there is an even number of scores and you need to find the median, you:

Question 2 2. 'Variance' is similar to 'standard deviation' in all the following ways EXCEPT:

Question 3 3. 'Variance' attempts to estimate

Question 4 4. Which of the following best describes a frequency distribution?

Question 5 5. Professor Dublin has just given a biology exam and wants to calculate the 'range' of performance of his students. What must he do?

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Question 6 6. Which of the following is a histogram also known by?

Question 7 7. A sample is usually intended to be

Question 8 8. Range, standard deviation, and variance are 'similar' in that each looks at

Question 9 9. You gathered data at a clinic and entered your results into the frequency table shown below. A research journal wants to know how many people at the clinic have either depression or anxiety. Which of the following would you report to the journal?

Question 10 10. Which of the following is least likely to be reported due to it being the one most likely to change by the introduction of additional scores?

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Question 11 11. You gathered data at a clinic and entered your results into the frequency table shown below. Which of the following is the percentage of patients you found to have schizophrenia (round to the nearest tenth if necessary)?

Question 12 12. Which of the following is the least useful in helping you understand how varied your data scores are?

Question 13 13. You gathered data at a clinic and entered your results into the frequency table shown below. You are going to find percentages for each symptom. Which of the following would you use as your total number of scores collected?

Question 14 14. Professor Dublin wants to ensure he is thorough in his review of student performance, so he decides to calculate 'standard deviation' as well. What must Professor Dublin do to figure out this measure of variability?

Question 15 15. All of the following statements are correct, EXCEPT:

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Question 16 16. If all other statistical procedures fail, the best predictor of a score will be the _____.

Question 17 17. Descriptive statistics are used to:

Question 18 18. If there are two modes, you should _____.

Question 19 19. The mean is influenced by:

Question 20 20. Standard deviation tells you:

Descriptive Statistics in Psychology: 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!

Research Methods in Psychology: Homework Help Resource  /  Psychology Courses
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