Quiz 3 Summer Semester SY14/15
Question
1
Marks: 3
Imagine I flipped a coin 8 times. From the binomial table, I learned that the probability of getting 7 heads out of 8 flips is .0313 and the probability of getting 8 heads out of 8 flips is .0039. Using this information, please match the following descriptions with the appropriate answer.
What is the probability of getting 7 heads or higher in 8 flips?  Choose…  .0313/.0039  .0313 + .0039  .03132 + .00392  0.50  (.0313)(.0039)  
What is the probability of getting a heads on the first flip?  Choose…  .0313/.0039  .0313 + .0039  .03132 + .00392  0.50  (.0313)(.0039)  
What is the probability of getting 7 heads out of 8 flips and getting 8 heads out of another 8 flips?  Choose…  .0313/.0039  .0313 + .0039  .03132 + .00392  0.50  (.0313)(.0039) 
Question
2
Marks: 1
For this problem and other problems in this quiz, rely on the following information. Szalacha, Erkut, Coll, Alarcon, Fields, and Ceder in 2003 investigated the research hypothesis that Puerto Rican children in the US who report or perceive discrimination will have more mental health problems and higher schoolrelated stress than Puerto Rican children who do not perceive discrimination. The researchers presented the table below with scores on the Reynolds Child Depression Scale (RCDS).
Perceived Discrimination


Yes (n = 36)

No (n = 255)


Variable

m

SD

m

SD

t (289)

RCDS

1.90  0.51  1.71  0.44  2.39*

Note: *p < .05
Szalcha, L.A., Coll, C.G., Alarcon, O., Fields, J.P.,& Ceder, I. (2003). Discrimination and Puerto Rican childrens’ and adolescents’ mental health. Cultural Diversity and Ethnic Minority Psychology, 9(2), 141155.
Which of the following formulas would be used to construct the 95% confidence interval for these data?
Choose one answer.







Question
3
Marks: 1
For this problem, and other problems in this quiz, consider the following situation: Researchers randomly assigned 33 participants suffering from generalized anxiety disorder (GAD) to the three levels of a treatment IV (cognitive behavioral, group therapy, and no treatment control) and measured outcome by administering a measure of anxiety that ranged in total score from 1 to 50 with higher scores indicating more anxiety. When the researchers analyzed the data, they obtained the following ANOVA summary table with certain values missing. To answer questions pertaining to these data, you will need to solve for the missing values.
Source  df  SS  MS  F 
Treatment  2  ?  1100  ? 
Error  ?  2700  ?  
Total  32  4900 
If we were able to increase the sample size in this study to 103, what would happen to the computed F value used to quiz the null hypothesis?
Choose one answer.





Question
4
Marks: 1
For this problem, and other problems in this quiz, consider the following situation: Researchers randomly assigned 33 participants suffering from generalized anxiety disorder (GAD) to the three levels of a treatment IV (cognitive behavioral, group therapy, and no treatment control) and measured outcome by administering a measure of anxiety that ranged in total score from 1 to 50 with higher scores indicating more anxiety. When the researchers analyzed the data, they obtained the following ANOVA summary table with certain values missing. To answer questions pertaining to these data, you will need to solve for the missing values.
Source  df  SS  MS  F 
Treatment  2  ?  1100  ? 
Error  ?  2700  ?  
Total  32  4900 
What is the MS(error) for this ANOVA summary table? (The answer must be written as a number with no decimal places. Write the final answer only; do not write the formula or computations used to derive the answer. Do not write the answer as a percentage.)
Answer:
Question
5
Marks: 1
For this problem, and other problems in this quiz, consider the following situation: Researchers randomly assigned 33 participants suffering from generalized anxiety disorder (GAD) to the three levels of a treatment IV (cognitive behavioral, group therapy, and no treatment control) and measured outcome by administering a measure of anxiety that ranged in total score from 1 to 50 with higher scores indicating more anxiety. When the researchers analyzed the data, they obtained the following ANOVA summary table with certain values missing. To answer questions pertaining to these data, you will need to solve for the missing values.
Source  df  SS  MS  F 
Treatment  2  ?  1100  ? 
Error  ?  2700  ?  
Total  32  4900 
Based on the results in the ANOVA summary table, the researchers would decide to reject the null hypothesis.
Answer:
True
False
Question
6
Marks: 1
For this problem, and other problems in this quiz, consider the following situation: Researchers randomly assigned 33 participants suffering from generalized anxiety disorder (GAD) to the three levels of a treatment IV (cognitive behavioral, group therapy, and no treatment control) and measured outcome by administering a measure of anxiety that ranged in total score from 1 to 50 with higher scores indicating more anxiety. When the researchers analyzed the data, they obtained the following ANOVA summary table with certain values missing. To answer questions pertaining to these data, you will need to solve for the missing values.
Source  df  SS  MS  F 
Treatment  2  ?  1100  ? 
Error  ?  2700  ?  
Total  32  4900 
If we were able to increase the sample size in this study to 103 what would happen to the critical value used to quiz the null hypothesis?
Choose one answer.





Question
7
Marks: 1
For this problem and other problems in this quiz, rely on the following information. Szalacha, Erkut, Coll, Alarcon, Fields, and Ceder in 2003 investigated the research hypothesis that Puerto Rican children in the US who report or perceive discrimination will have more mental health problems and higher schoolrelated stress than Puerto Rican children who do not perceive discrimination. The researchers presented the table below with scores on the Reynolds Child Depression Scale (RCDS).
Perceived Discrimination


Yes (n = 36)

No (n = 255)


Variable

m

SD

m

SD

t (289)

RCDS

1.90  0.51  1.71  0.44  2.39*

Note: *p < .05
Szalcha, L.A., Coll, C.G., Alarcon, O., Fields, J.P.,& Ceder, I. (2003). Discrimination and Puerto Rican childrens’ and adolescents’ mental health. Cultural Diversity and Ethnic Minority Psychology, 9(2), 141155.
Based on the findings reported in the table, the researchers would elect to retain the null hypothesis.
Answer:
True
False
Question
8
Marks: 1
For this problem, and other problems in this quiz, consider the following situation: Researchers randomly assigned 33 participants suffering from generalized anxiety disorder (GAD) to the three levels of a treatment IV (cognitive behavioral, group therapy, and no treatment control) and measured outcome by administering a measure of anxiety that ranged in total score from 1 to 50 with higher scores indicating more anxiety. When the researchers analyzed the data, they obtained the following ANOVA summary table with certain values missing. To answer questions pertaining to these data, you will need to solve for the missing values.
Source  df  SS  MS  F 
Treatment  2  ?  1100  ? 
Error  ?  2700  ?  
Total  32  4900 
What is the F statistic in this ANOVA summary table? (The answer must be written as a number carried to two decimal places. Write the final answer only; do not write the formula or computations used to derive the answer. Do not write the answer as a percentage.)
Answer:
Question
9
Marks: 1
For this problem and other problems in this quiz, rely on the following information. Szalacha, Erkut, Coll, Alarcon, Fields, and Ceder in 2003 investigated the research hypothesis that Puerto Rican children in the US who report or perceive discrimination will have more mental health problems and higher schoolrelated stress than Puerto Rican children who do not perceive discrimination. The researchers presented the table below with scores on the Reynolds Child Depression Scale (RCDS).
Perceived Discrimination


Yes (n = 36)

No (n = 255)


Variable

m

SD

m

SD

t (289)

RCDS

1.90  0.51  1.71  0.44  2.39*

Note: *p < .05
Szalcha, L.A., Coll, C.G., Alarcon, O., Fields, J.P.,& Ceder, I. (2003). Discrimination and Puerto Rican childrens’ and adolescents’ mental health. Cultural Diversity and Ethnic Minority Psychology, 9(2), 141155.
Which of the following would occur if researchers in this problem accepted the null hypothesis for these data only to have other researchers repeatedly reject the null hypothesis when they did similar studies?
Choose one answer.







Question
10
Marks: 6
Please match the following terms with the appropriate description.
Distribution of sample statistics based on infinite sampling.  Choose…  parameter  standard deviation  range  sampling distribution  variance  confidence interval  standard error  quartile  frequency distribution  
The average distance a sample statistic can be expected to fall from its population value.  Choose…  parameter  standard deviation  range  sampling distribution  variance  confidence interval  standard error  quartile  frequency distribution  
Based on a sample statistic, a range of scores likely to contain the population parameter.  Choose…  parameter  standard deviation  range  sampling distribution  variance  confidence interval  standard error  quartile  frequency distribution  
The mean of the sum of squares.  Choose…  parameter  standard deviation  range  sampling distribution  variance  confidence interval  standard error  quartile  frequency distribution  
The average distance scores fall from the mean.  Choose…  parameter  standard deviation  range  sampling distribution  variance  confidence interval  standard error  quartile  frequency distribution  
Range of scores in a distribution that includes 25% of the cases.  Choose…  parameter  standard deviation  range  sampling distribution  variance  confidence interval  standard error  quartile  frequency distribution 
Question
11
Marks: 1
In a two independent samples t quiz, which of the following describe the appropriate interpretation when p < .05?
Choose one answer.







Question
12
Marks: 1
For this problem, and other problems in this quiz, consider the following situation: Researchers randomly assigned 33 participants suffering from generalized anxiety disorder (GAD) to the three levels of a treatment IV (cognitive behavioral, group therapy, and no treatment control) and measured outcome by administering a measure of anxiety that ranged in total score from 1 to 50 with higher scores indicating more anxiety. When the researchers analyzed the data, they obtained the following ANOVA summary table with certain values missing. To answer questions pertaining to these data, you will need to solve for the missing values.
Source  df  SS  MS  F 
Treatment  2  ?  1100  ? 
Error  ?  2700  ?  
Total  32  4900 
If we were able to increase the sample size to 103 in this study, what would happen to the power of the quiz of the null hypotheis?
Choose one answer.





Question
13
Marks: 1
For this problem, and other problems on this quiz, use the following hypothetical information:
Researchers suspected there was a relationship between locus of control and medical compliance for adults suffering from Type II diabetes. They selected a sample of 100 patients suffering from diabetes and found that 55 had external locus of control and that 45 had internal locus of control. They then counted how many patients were compliant (yes or no) with their medication regime.
What statistical quiz would be used to quiz the null hypothesis in this study?
Choose one answer.







Question
14
Marks: 1
For this problem and other problems in this quiz, rely on the following information. Szalacha, Erkut, Coll, Alarcon, Fields, and Ceder in 2003 investigated the research hypothesis that Puerto Rican children in the US who report or perceive discrimination will have more mental health problems and higher schoolrelated stress than Puerto Rican children who do not perceive discrimination. The researchers presented the table below with scores on the Reynolds Child Depression Scale (RCDS).
Perceived Discrimination


Yes (n = 36)

No (n = 255)


Variable

m

SD

m

SD

t (289)

RCDS

1.90  0.51  1.71  0.44  2.39*

Note: *p < .05
Szalcha, L.A., Coll, C.G., Alarcon, O., Fields, J.P.,& Ceder, I. (2003). Discrimination and Puerto Rican childrens’ and adolescents’ mental health. Cultural Diversity and Ethnic Minority Psychology, 9(2), 141155.
Which of the following is the independent variable (IV) in this study?
Choose one answer.







Question
15
Marks: 1
Which of the following is a statistically significant finding (i.e., the null hypothesis is rejected) for a two independent samples t quiz when N = 20?
Choose one answer.







Question
16
Marks: 1
For this problem, and other problems in this quiz, consider the following situation: Researchers randomly assigned 33 participants suffering from generalized anxiety disorder (GAD) to the three levels of a treatment IV (cognitive behavioral, group therapy, and no treatment control) and measured outcome by administering a measure of anxiety that ranged in total score from 1 to 50 with higher scores indicating more anxiety. When the researchers analyzed the data, they obtained the following ANOVA summary table with certain values missing. To answer questions pertaining to these data, you will need to solve for the missing values.
Source  df  SS  MS  F 
Treatment  2  ?  1100  ? 
Error  ?  2700  ?  
Total  32  4900 
What was the critical value used to quiz the null hypothesis? (The answer must be written as a number carried to two decimal places. Write the final answer only; do not write the formula or computations used to derive the answer. Do not write the answer as a percentage.)
Answer:
Question
17
Marks: 1
For this problem, and other problems in this quiz, use the following hypothetical situation:
Researchers hypothesized that young adults would report a reduction in consumption of doughnuts after attending a psychoeducational intervention during which there is a discussion of a suspected link between the use of sugar, stress, and depression. Researchers selected a sample of 30 students and measured the number of doughnuts they ate in the week before the class and the number of doughnuts the same group ate in the week after the class.
Which of the following would be the appropriate numerator (estimate of treatment effect) for the formula best suited to analyze these data?
Choose one answer.







Question
18
Marks: 1
A software firm is eager to attract new workers to their company. The company is like most; most workers earn modest salaries and a few earn very high salaries. Which measure of central tendency of the income will be most attractive to an applicant?
Choose one answer.







Question
19
Marks: 1
For this problem, and other problems in this quiz, use the following hypothetical situation:
Researchers hypothesized that young adults would report a reduction in consumption of doughnuts after attending a psychoeducational intervention during which there is a discussion of a suspected link between the use of sugar, stress, and depression. Researchers selected a sample of 30 students and measured the number of doughnuts they ate in the week before the class and the number of doughnuts the same group ate in the week after the class.
Which of the following is not true of the IV in this study?
Choose one answer.







Question
20
Marks: 1
For this problem, and other problems on this quiz, use these data which are abstracted from a study investigating the relationship between attachment and anger regulation among KoreanAmerican male batterers, N = 43 (Kim & Zane, 2004).
Variable

1  2  3  4  5 



0.21  

.40*

.57*



0.12  0.06  0.09  

.42*

.35*

.44*

0.07  

0.11  .36*

0.20  0.33  0.23 
Note: * = p < .05
Kim, I.J. & Zane, N.W. (2004). Ethnic and cultural variations in anger regulation and attachment patters among Korean American and European American male batterers.Cultural Diversity and Ethnic Minority Psychology, 10(2), 151168.
Which of the following was the null hypothesis for the quiz of the relationship between anxious attachment and physical violence?
Choose one answer.







Question
21
Marks: 1
For this problem and other problems in this quiz, rely on the following information. Szalacha, Erkut, Coll, Alarcon, Fields, and Ceder in 2003 investigated the research hypothesis that Puerto Rican children in the US who report or perceive discrimination will have more mental health problems and higher schoolrelated stress than Puerto Rican children who do not perceive discrimination. The researchers presented the table below with scores on the Reynolds Child Depression Scale (RCDS).
Perceived Discrimination


Yes (n = 36)

No (n = 255)


Variable

m

SD

m

SD

t (289)

RCDS

1.90  0.51  1.71  0.44  2.39*

Note: *p < .05
Szalcha, L.A., Coll, C.G., Alarcon, O., Fields, J.P.,& Ceder, I. (2003). Discrimination and Puerto Rican childrens’ and adolescents’ mental health. Cultural Diversity and Ethnic Minority Psychology, 9(2), 141155.
What type of t quiz was used to analyze these data ?
Choose one answer.







Question
22
Marks: 1
For this problem, and other problems in this quiz, consider the following situation: Researchers randomly assigned 33 participants suffering from generalized anxiety disorder (GAD) to the three levels of a treatment IV (cognitive behavioral, group therapy, and no treatment control) and measured outcome by administering a measure of anxiety that ranged in total score from 1 to 50 with higher scores indicating more anxiety. When the researchers analyzed the data, they obtained the following ANOVA summary table with certain values missing. To answer questions pertaining to these data, you will need to solve for the missing values.
Source  df  SS  MS  F 
Treatment  2  ?  1100  ? 
Error  ?  2700  ?  
Total  32  4900 
What is df(error) in this ANOVA summary table? (The answer must be written as a number with no decimal places. Write the final answer only; do not write the formula or computations used to derive the answer. Do not write the answer as a percentage.)
Answer:
Question
23
Marks: 1
Which of the following indicates that the sampling distribution of the mean approaches normality when N increases?
Choose one answer.







Question
24
Marks: 1
For this problem, and other problems in this quiz, consider the following situation: Researchers randomly assigned 33 participants suffering from generalized anxiety disorder (GAD) to the three levels of a treatment IV (cognitive behavioral, group therapy, and no treatment control) and measured outcome by administering a measure of anxiety that ranged in total score from 1 to 50 with higher scores indicating more anxiety. When the researchers analyzed the data, they obtained the following ANOVA summary table with certain values missing. To answer questions pertaining to these data, you will need to solve for the missing values.
Source  df  SS  MS  F 
Treatment  2  ?  1100  ? 
Error  ?  2700  ?  
Total  32  4900 
What is SS(treatment) in this ANOVA summary table? (The answer must be written as a number with no decimal places. Write the final answer only; do not write the formula or computations used to derive the answer. Do not write the answer as a percentage.)
Answer:
Question
25
Marks: 1
For this problem, and other problems on this quiz, use the following hypothetical information:
Researchers suspected there was a relationship between locus of control and medical compliance for adults suffering from Type II diabetes. They selected a sample of 100 patients suffering from diabetes and found that 55 had external locus of control and that 45 had internal locus of control. They then counted how many patients were compliant (yes or no) with their medication regime.
What is the critical value used to quiz this hypothesis? (The answer must be written as a number carried to two decimal places. Write the final answer only; do not write the formula or computations used to derive the answer. Do not write the answer as a percentage.)
Answer:
Question
26
Marks: 1
For this problem, and other problems on this quiz, use these data which are abstracted from a study investigating the relationship between attachment and anger regulation among KoreanAmerican male batterers, N = 43 (Kim & Zane, 2004).
Variable

1  2  3  4  5 



0.21  

.40*

.57*



0.12  0.06  0.09  

.42*

.35*

.44*

0.07  

0.11  .36*

0.20  0.33  0.23 
Note: * = p < .05
Kim, I.J. & Zane, N.W. (2004). Ethnic and cultural variations in anger regulation and attachment patters among Korean American and European American male batterers. Cultural Diversity and Ethnic Minority Psychology, 10(2), 151168.
What is the proportion of variance in anger expression predicted by scores on physical violence? (The answer must be written as a number carried to two decimal places. Write the final answer only; do not write the formula or computations used to derive the answer. Do not write the answer as a percentage.)
Answer:
Question
27
Marks: 1
For this problem, and other problems in this quiz, use the following hypothetical situation:
Researchers hypothesized that young adults would report a reduction in consumption of doughnuts after attending a psychoeducational intervention during which there is a discussion of a suspected link between the use of sugar, stress, and depression. Researchers selected a sample of 30 students and measured the number of doughnuts they ate in the week before the class and the number of doughnuts the same group ate in the week after the class.
What is the critical value used to quiz the null hypothesis? (This answer must be written as a number carried to three decimal places. Write the final answer only; do not write the formula or computations used to derive the answer. Do not write a + or – value in front of the answer.)
Answer:
Question
28
Marks: 1
For this problem, and other problems on this quiz, use these data which are abstracted from a study investigating the relationship between attachment and anger regulation among KoreanAmerican male batterers, N = 43 (Kim & Zane, 2004).
Variable

1  2  3  4  5 



0.21  

.40*

.57*



0.12  0.06  0.09  

.42*

.35*

.44*

0.07  

0.11  .36*

0.20  0.33  0.23 
Note: * = p < .05
Kim, I.J. & Zane, N.W. (2004). Ethnic and cultural variations in anger regulation and attachment patters among Korean American and European American male batterers.Cultural Diversity and Ethnic Minority Psychology, 10(2), 151168.
Which of the following describe the general trend of the scores for the relationship between anger expression and anger experience?
Choose one answer.







Question
29
Marks: 1
For this problem, and other problems on this quiz, use these data which are abstracted from a study investigating the relationship between attachment and anger regulation among KoreanAmerican male batterers, N = 43 (Kim & Zane, 2004).
Variable

1  2  3  4  5 



0.21  

.40*

.57*



0.12  0.06  0.09  

.42*

.35*

.44*

0.07  

0.11  .36*

0.20  0.33  0.23 
Note: * = p < .05
Kim, I.J. & Zane, N.W. (2004). Ethnic and cultural variations in anger regulation and attachment patters among Korean American and European American male batterers.Cultural Diversity and Ethnic Minority Psychology, 10(2), 151168.
The researchers rejected the null hypothesis concerning the relationship between anxious attachment and physical violence.
Answer:
True
False
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