Statistics PSY302 Quiz Chapters 16 & 17

1. Statistics PSY302 Quiz Chapters 16 & 17

2. 1. One group of Alzheimer’s patients was taught using visuals and another visuals plus intense verbal refusal. To see if there is a difference between the groups we would use which t-test? • Matched pairs • Independent sample unequal variances assumed

3. 1. One group of Alzheimer’s patients was taught using visuals and another visuals plus intense verbal refusal. To see if there is a difference between the groups we would use which t-test? • Matched pairs • Independent sample unequal variances assumed

4. 2. For the dataset women in the workforce we want to see if the number of women in the work force changed from 1968 to 1972. What type of t-test is this? • Matched pairs • Independent sample unequal variances assumed

5. 2. For the dataset women in the workforce we want to see if the number of women in the work force changed from 1968 to 1972. What type of t-test is this? • Matched pairs • Independent sample unequal variances assumed

6. 3. The correct p-value for this output is: • .012 • -2.45 • .024 • .493 • 18

7. 3. The correct p-value for this output is: • .012 • -2.45 • .024 • .493 • 18

8. 4. A researcher in Turkey compared online with face-to-face courses in teaching Boy and Girl Scouts. This would be an example of • Matched pairs • Independent sample unequal variances assumed

9. 4. A researcher in Turkey compared online with face-to-face courses in teaching Boy and Girl Scouts. This would be an example of • Matched pairs • Independent sample unequal variances assumed

10. 5. Dr. Wattles wants to see which PSY302 test was more difficult. He should use a _______ test. • Matched pairs • Independent sample unequal variances assumed

11. 5. Dr. Wattles wants to see which PSY302 test was more difficult. He should use a _______ test. • Matched pairs • Independent sample unequal variances assumed

12. 6. Do these data show that Exam 3 was easier than exam 2? • yes • no

13. 6. Do these data show that Exam 3 was easier than exam 2? • yes • no

14. 7. The proper T distribution is decided by: • The P-value • The significance level • The confidence interval • Degrees of freedom • Square root of N.

15. 7. The proper T distribution is decided by: • The P-value • The significance level • The confidence interval • Degrees of freedom • Square root of N.

16. 8. Joseph is comparing how many yards plyers gain on turf versus on grass. Which t-test should he use? • Matched pairs • Independent sample unequal variances assumed

17. 8. Joseph is comparing how many yards plyers gain on turf versus on grass. Which t-test should he use? • Matched pairs • Independent sample unequal variances assumed

18. 9. Do these data show if the average score on music is different from that for flower. This would be a _____ hypothesis. • One-tail • Two-tail • Both of the above • Neither of the above

19. 9. Do these data show if the average score on music is different from that for flower. This would be a _____ hypothesis. • One-tail • Two-tail • Both of the above • Neither of the above

20. 10. A t-test comparing flower trvia to music trivia would require a _____t-test. • Matched Pairs • One-sample • Independent Samples

21. 10. A t-test comparing flower trvia to music trivia would require a _____t-test. • Matched Pairs • One-sample • Independent Samples

22. Bonus. Degrees of freedom is determined by: • The variance • Sample size • The square root of n • T distribution • The null hypothesis

23. Bonus. Degrees of freedom is determined by: • The variance • Sample size • The square root of n • T distribution • The null hypothesis

24. Bonus: To these data show that students score higher on one quiz than the other? • Yes • No • Can’t say

25. Bonus: To these data show that students score higher on one quiz than the other? • Yes • No • Can’t say

26. Bonus 3. What is the effect size (Cohen’s D) for this study? • .012 • -2.45 • .48 • .493 • 18

27. Bonus 3. What is the effect size (Cohen’s D) for this study? • .012 • -2.45 • .48 • .493 • 18

28. The End