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Suppose the correlation between depression and anxiety isr=0.41. What portion...
If the correlation between rating of depression and sleep patterns is .70, what percent of depression...
If the correlation between rating of depression and sleep patterns is .70, what percent of depression can be explained by sleeping patterns? 30% 49% 70% 51%
Suppose that there is a .6 correlation between IQ (μ = 100, σ = 15) and...
Suppose that there is a .6 correlation between IQ (μ = 100, σ = 15) and verbal SAT score (μ = 500, σ = 100). What would be the variance of the estimate when predicting IQ from verbal SAT? 36 64 144 640
A psychologist wanted to assess the relationship between depression and self-esteem. She believes that as depression...
A psychologist wanted to assess the relationship between depression and self-esteem. She believes that as depression increases, self-esteem decreases. She asked a group of 25 participants to complete both Beck’s Depression Inventory (Beck, Ward, Mendelson, Mock, & Erbaugh, 1961) and Rosenberg’s Self-Esteem Scale (1965). The data for each participant is as follows: Depression (X) Self-Esteem (Y) 60 11 27 34 15 33 30 24 56 14 52 16 40 23 49 33 24 27 38 26 48 17 58 10...
A statistics student computes the correlation between two variables in her spreadsheet and finds r =...
A statistics student computes the correlation between two variables in her spreadsheet and finds r = 0.06. She concludes there is no relationship between the variables. Is she correct? no We do not have enough information to answer the question. O yes
Therapy Study " A hospital administrator wishes to assess the relationship between a patient's level of anxiety (x) and that patient's level of satisfaction (y) with a new hospital treatm...
Therapy Study " A hospital administrator wishes to assess the relationship between a patient's level of anxiety (x) and that patient's level of satisfaction (y) with a new hospital treatment. A linear regression analysis was performed on data for a random sample of n -46 patients who went through this new therapy treatment. A summary of the results is given below: 3. StdDev Min. 1st Qu. Median 3rd Qu. Max. Mean Satisfaction 61.57 17.24 26.00 48.25 60.0076.75 92.00 Anxiety 2.287...
Critical Values for the Correlation Coefficient n alpha = .05 alpha = .01 4 0.95 ...
Critical Values for the Correlation
Coefficient
n alpha = .05 alpha = .01
4 0.95 0.99
5 0.878 0.959
6 0.811 0.917
7 0.754 0.875
8 0.707 0.834
9 0.666 0.798
10 0.632 0.765
11 0.602 0.735
12 0.576 0.708
13 0.553 0.684
14 0.532 0.661
15 0.514 0.641
16 0.497 0.623
17 0.482 0.606
18 0.468 0.59
19 0.456 0.575
20 0.444 0.561
25 0.396 0.505
30 0.361 0.463
35 0.335 0.43
40 0.312 0.402
45 0.294 0.378...
What does a correlation coefficient of 0 indicate? Choose the correct answer below. O A. There...
What does a correlation coefficient of 0 indicate? Choose the correct answer below. O A. There is no linear relationship between the two quantitative variables. O B. There is a weak relationship between the two quantitative variables. O C. It indicates a calculation error, as the correlation coefficient cannot be 0. O D. There is a strong relationship between the two quantitative variables. O E. It indicates a non-linear relationship between the two quantitative variables.
If a researcher obtained an r of -0.85, what could you say about this correlation? -...
If a researcher obtained an r of -0.85, what could you say about this correlation? - This is a strong negative correlation. O This is a strong positive correlation. O This is a weak negative correlation. O This is a weak positive correlation. Question 4 1 pts If a researcher wanted to see if cumulative GPA predicts GRE scores, which of the two variables would be the predictor variable? The number of participants None of the other answers O GRE...
please answer all questions : 6-8 Question 6 1 pts A researcher examines the relationship between...
please answer all questions : 6-8
Question 6 1 pts A researcher examines the relationship between an individual's adjustment to becoming a parent and his/her age, while removing the influence of financial status. What procedure would allow such an analysis? o mixed correlation o split-half reliability o spurious correlation o partial correlation MULTIPLE CHOICE - 2 POINTS EACH Question 7 2 pts A researcher is interested in whether there are significant differences between men and women and religious preferences. In...
Question 1 1 pts The correlation between score and first year GPA is 0.529. What is...
Question 1 1 pts The correlation between score and first year GPA is 0.529. What is the critical value for the testing if the correlation is significant at a =.05? Question 2 1 pts To determine if the correlation is significant, what rule is used? correlation is significant if r<.05 correlation is significant if |r| < critical value O correlation is significant if r>.05 correlation is significant if |r| > critical value Information for questions 1-6: A graduate program wants...
A statistics student computes the correlation between two variables in her spreadsheet and finds r = 0.06. She concludes there is no relationship between the variables. Is she correct? no We do not have enough information to answer the question. O yes
Therapy Study " A hospital administrator wishes to assess the relationship between a patient's level of anxiety (x) and that patient's level of satisfaction (y) with a new hospital treatment. A linear regression analysis was performed on data for a random sample of n -46 patients who went through this new therapy treatment. A summary of the results is given below: 3. StdDev Min. 1st Qu. Median 3rd Qu. Max. Mean Satisfaction 61.57 17.24 26.00 48.25 60.0076.75 92.00 Anxiety 2.287...
Critical Values for the Correlation
Coefficient
n alpha = .05 alpha = .01
4 0.95 0.99
5 0.878 0.959
6 0.811 0.917
7 0.754 0.875
8 0.707 0.834
9 0.666 0.798
10 0.632 0.765
11 0.602 0.735
12 0.576 0.708
13 0.553 0.684
14 0.532 0.661
15 0.514 0.641
16 0.497 0.623
17 0.482 0.606
18 0.468 0.59
19 0.456 0.575
20 0.444 0.561
25 0.396 0.505
30 0.361 0.463
35 0.335 0.43
40 0.312 0.402
45 0.294 0.378...
What does a correlation coefficient of 0 indicate? Choose the correct answer below. O A. There is no linear relationship between the two quantitative variables. O B. There is a weak relationship between the two quantitative variables. O C. It indicates a calculation error, as the correlation coefficient cannot be 0. O D. There is a strong relationship between the two quantitative variables. O E. It indicates a non-linear relationship between the two quantitative variables.
If a researcher obtained an r of -0.85, what could you say about this correlation? - This is a strong negative correlation. O This is a strong positive correlation. O This is a weak negative correlation. O This is a weak positive correlation. Question 4 1 pts If a researcher wanted to see if cumulative GPA predicts GRE scores, which of the two variables would be the predictor variable? The number of participants None of the other answers O GRE...
please answer all questions : 6-8
Question 6 1 pts A researcher examines the relationship between an individual's adjustment to becoming a parent and his/her age, while removing the influence of financial status. What procedure would allow such an analysis? o mixed correlation o split-half reliability o spurious correlation o partial correlation MULTIPLE CHOICE - 2 POINTS EACH Question 7 2 pts A researcher is interested in whether there are significant differences between men and women and religious preferences. In...
Question 1 1 pts The correlation between score and first year GPA is 0.529. What is the critical value for the testing if the correlation is significant at a =.05? Question 2 1 pts To determine if the correlation is significant, what rule is used? correlation is significant if r<.05 correlation is significant if |r| < critical value O correlation is significant if r>.05 correlation is significant if |r| > critical value Information for questions 1-6: A graduate program wants...
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