1. Statistics PSY302 Quiz Chapters 16 & 17

2. 1. A study comparing students who live in South Carolina with those who live in Maine on school attendance would be a _____ design.
Single Sample
Matched Pairs
Independent Samples

3. 1. A study comparing students who live in South Carolina with those who live in Maine on school attendance would be a _____ design.
Single Sample
Matched Pairs
Independent Samples

4. 2. A study comparing students scores on the final to their scores on the mid-term would be a ____ design.
Single Sample
Matched Pairs
Independent Samples

5. 2. A study comparing students scores on the final to their scores on the mid-term would be a ____ design.
Single Sample
Matched Pairs
Independent Samples

6. 3. It the p-value is ______, then we say the data are statistically significant.
Equal to the mean
as small as or smaller than α
Greater than the obtained statistic
Larger than alpha
greater than .05

7. 3. It the p-value is ______, then we say the data are statistically significant.
Equal to the mean
as small as or smaller than α
Greater than the obtained statistic
Larger than alpha
greater than .05

8. 7. The alpha value for your paper will be:
100
.05
.50
.10
Depends on the variance

9. 4. The alpha value for your paper will be:
100
.05
.50
.10
Depends on the variance

10. 4. We use t scores when:
We want to talk about values rather than a claim about the relationship
We want to predict the value
The population standard deviation is unknown
We are concerned about chance
We have categorical data

11. 4. We use t scores when:
We want to talk about values rather than a claim about the relationship
We want to predict the value
The population standard deviation is unknown
We are concerned about chance
We have categorical data

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

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

14. 6. To see how meaningful a significant result is we need to:
Calculate the mean and standard deviation
Check the hypotenuse
Calculate an effect size
Redo the study
All of the above

15. 6. To see how meaningful a significant result is we need to:
Calculate the mean and standard deviation
Check the hypotenuse
Calculate an effect size
Redo the study
All of the above

16. 7. 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

17. 7. 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

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

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

20. 9. A Z score of .50 means
50 points above the average of the sample
Way, way above average
One half a standard deviation above the mean
All of the above

21. 9. A Z score of .50 means
50 points above the average of the sample
Way, way above average
One half a standard deviation above the mean
All of the above

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

23. 10. 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. The End