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Top of Form

1

Marks: 6

Please match the following terms with the appropriate description.

The mean of the sum of squares.

Range of scores in a distribution that includes 25% of the cases.

The average distance scores fall from the mean.

Based on a sample statistic, a range of scores likely to contain the population parameter.

Distribution of sample statistics based on infinite sampling.

The average distance a sample statistic can be expected to fall from its population value.

Question2

Marks: 1

For this problem and other problems in this exam, 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 school-related 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

.51

1.71

.44

2.39*

Note: *p < .05

Szalcha, L.A., Coll, C.G., Alarcon, O., Fields, J.P.,& Ceder, I XXXXXXXXXXDiscrimination and Puerto Rican childrens' and adolescents' mental health. Cultural Diversity and Ethnic Minority Psychology, 9(2), XXXXXXXXXX.

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.

a. Type I e

o

b. Type II e

o

c. power of a test

d. confidence interval

Question3

Marks: 1

For this problem, and other problems on this exam, use these data which are abstracted from a study investigating the relationship between attachment and anger regulation among Korean-American male batterers, N = 43 (Kim & Zane, 2004).

Variable

1

2

3

4

5

1. Physical violence

2. Anger experience

.21

3. Anger expression

.40*

.57*

4. Anger control

-.12

-.06

-.09

5. Anxious attachment

.42*

.35*

.44*

.07

6. Avoidant attachment

-.11

-.36*

-.20

-.33

-.23

Note: * = p < .05

Kim, I.J. & Zane, N.W XXXXXXXXXXEthnic 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), XXXXXXXXXX.

What is the proportion of variance in anger expression predicted by scores on physical violence? (The answer must be written as a number ca

ied 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:

Question4

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.

a. mean

b. median

c. mode

d. variance

Question5

Marks: 1

For this problem, and other problems in this exam, use the following hypothetical situation:

Researchers hypothesized that young adults would report a reduction in consumption of doughnuts after attending a psycho-educational 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.

a. (mean of group 1) - (mean of group 2)

b. mean of participant difference scores

c. co

elation coefficient

d. (sample mean) - (population mean)

Question6

Marks: 1

For this problem, and other problems in this exam, use the following hypothetical situation:

Researchers hypothesized that young adults would report a reduction in consumption of doughnuts after attending a psycho-educational 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.

a. between subjects

b. within subjects

c. subjects act as their own control

d. subjects appear in every level of the IV

Question7

Marks: 1

For this problem, and other problems in this exam, 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

?

E

o

?

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:

Question8

Marks: 1

For this problem, and other problems on this exam, use these data which are abstracted from a study investigating the relationship between attachment and anger regulation among Korean-American male batterers, N = 43 (Kim & Zane, 2004).

Variable

1

2

3

4

5

1. Physical violence

2. Anger experience

.21

3. Anger expression

.40*

.57*

4. Anger control

-.12

-.06

-.09

5. Anxious attachment

.42*

.35*

.44*

.07

6. Avoidant attachment

-.11

-.36*

-.20

-.33

-.23

Note: * = p < .05

Kim, I.J. & Zane, N.W XXXXXXXXXXEthnic 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), XXXXXXXXXX.

Which of the following describe the general trend of the scores for the relationship between anger expression and anger experience?

Choose one answer.

a. none of these answers are co

ect

b. positive z scores on one variable tend to be paired with negative z scores on the other variable

c. positive z scores on one variable are just as likely to be paired with positive z scores as with negative z scores

d. positive z scores on one variable tend to be paired with positive z scores on the other variable

Question9

Marks: 1

In a two independent samples t test, which of the following describe the appropriate interpretation when p < .05?

Choose one answer.

a. chance is less than 5 in 100 that the means are drawn from the same population

b. if the experiment is conducted 100 times we would expect contrary findings in fewer than 5 of those experiments

c. one mean is higher than anothe

d. all these answers are co

ect

Question10

Marks: 1

For this problem, and other problems on this exam, 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 test would be used to test the null hypothesis in this study?

Choose one answer.

a. t test for independent samples

b. t test for co

elation

c. F test

d. chi-square

Question11

Marks: 1

For this problem, and other problems in this exam, 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

?

E

o

?

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 test of the null hypotheis?

Choose one answer.

a. decrease

b. increase

c. remain the same

Question12

Marks: 1

For this problem, and other problems in this exam, 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

?

E

o

?

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 test the null hypothesis?

Choose one answer.

a. increase

b. decrease

c. remain the same

Question13

Marks: 1

For this problem and other problems in this exam, rely on the following information. Szalacha, Erkut, Coll, Alarcon, Fields, and Ceder in 2003 investigated the research

1

Marks: 6

Please match the following terms with the appropriate description.

The mean of the sum of squares.

Range of scores in a distribution that includes 25% of the cases.

The average distance scores fall from the mean.

Based on a sample statistic, a range of scores likely to contain the population parameter.

Distribution of sample statistics based on infinite sampling.

The average distance a sample statistic can be expected to fall from its population value.

Question2

Marks: 1

For this problem and other problems in this exam, 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 school-related 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

.51

1.71

.44

2.39*

Note: *p < .05

Szalcha, L.A., Coll, C.G., Alarcon, O., Fields, J.P.,& Ceder, I XXXXXXXXXXDiscrimination and Puerto Rican childrens' and adolescents' mental health. Cultural Diversity and Ethnic Minority Psychology, 9(2), XXXXXXXXXX.

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.

a. Type I e

o

b. Type II e

o

c. power of a test

d. confidence interval

Question3

Marks: 1

For this problem, and other problems on this exam, use these data which are abstracted from a study investigating the relationship between attachment and anger regulation among Korean-American male batterers, N = 43 (Kim & Zane, 2004).

Variable

1

2

3

4

5

1. Physical violence

2. Anger experience

.21

3. Anger expression

.40*

.57*

4. Anger control

-.12

-.06

-.09

5. Anxious attachment

.42*

.35*

.44*

.07

6. Avoidant attachment

-.11

-.36*

-.20

-.33

-.23

Note: * = p < .05

Kim, I.J. & Zane, N.W XXXXXXXXXXEthnic 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), XXXXXXXXXX.

What is the proportion of variance in anger expression predicted by scores on physical violence? (The answer must be written as a number ca

ied 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:

Question4

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.

a. mean

b. median

c. mode

d. variance

Question5

Marks: 1

For this problem, and other problems in this exam, use the following hypothetical situation:

Researchers hypothesized that young adults would report a reduction in consumption of doughnuts after attending a psycho-educational 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.

a. (mean of group 1) - (mean of group 2)

b. mean of participant difference scores

c. co

elation coefficient

d. (sample mean) - (population mean)

Question6

Marks: 1

For this problem, and other problems in this exam, use the following hypothetical situation:

Researchers hypothesized that young adults would report a reduction in consumption of doughnuts after attending a psycho-educational 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.

a. between subjects

b. within subjects

c. subjects act as their own control

d. subjects appear in every level of the IV

Question7

Marks: 1

For this problem, and other problems in this exam, 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

?

E

o

?

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:

Question8

Marks: 1

For this problem, and other problems on this exam, use these data which are abstracted from a study investigating the relationship between attachment and anger regulation among Korean-American male batterers, N = 43 (Kim & Zane, 2004).

Variable

1

2

3

4

5

1. Physical violence

2. Anger experience

.21

3. Anger expression

.40*

.57*

4. Anger control

-.12

-.06

-.09

5. Anxious attachment

.42*

.35*

.44*

.07

6. Avoidant attachment

-.11

-.36*

-.20

-.33

-.23

Note: * = p < .05

Kim, I.J. & Zane, N.W XXXXXXXXXXEthnic 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), XXXXXXXXXX.

Which of the following describe the general trend of the scores for the relationship between anger expression and anger experience?

Choose one answer.

a. none of these answers are co

ect

b. positive z scores on one variable tend to be paired with negative z scores on the other variable

c. positive z scores on one variable are just as likely to be paired with positive z scores as with negative z scores

d. positive z scores on one variable tend to be paired with positive z scores on the other variable

Question9

Marks: 1

In a two independent samples t test, which of the following describe the appropriate interpretation when p < .05?

Choose one answer.

a. chance is less than 5 in 100 that the means are drawn from the same population

b. if the experiment is conducted 100 times we would expect contrary findings in fewer than 5 of those experiments

c. one mean is higher than anothe

d. all these answers are co

ect

Question10

Marks: 1

For this problem, and other problems on this exam, 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 test would be used to test the null hypothesis in this study?

Choose one answer.

a. t test for independent samples

b. t test for co

elation

c. F test

d. chi-square

Question11

Marks: 1

For this problem, and other problems in this exam, 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

?

E

o

?

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 test of the null hypotheis?

Choose one answer.

a. decrease

b. increase

c. remain the same

Question12

Marks: 1

For this problem, and other problems in this exam, 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

?

E

o

?

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 test the null hypothesis?

Choose one answer.

a. increase

b. decrease

c. remain the same

Question13

Marks: 1

For this problem and other problems in this exam, rely on the following information. Szalacha, Erkut, Coll, Alarcon, Fields, and Ceder in 2003 investigated the research

Answered Same DayMay 21, 2021

Top of Form

1

Marks: 6

Please match the following terms with the appropriate description.

The mean of the sum of squares.

Range of scores in a distribution that includes 25% of the cases.

The average distance scores fall from the mean.

Based on a sample statistic, a range of scores likely to contain the population parameter.

Distribution of sample statistics based on infinite sampling.

The average distance a sample statistic can be expected to fall from its population value.

Question2

Marks: 1

For this problem and other problems in this exam, 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 school-related 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

.51

1.71

.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), 141-155.

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.

a. Type I e

o

b. Type II e

o

c. power of a test

d. confidence interval

Question3

Marks: 1

For this problem, and other problems on this exam, use these data which are abstracted from a study investigating the relationship between attachment and anger regulation among Korean-American male batterers, N = 43 (Kim & Zane, 2004).

Variable

1

2

3

4

5

1. Physical violence

2. Anger experience

.21

3. Anger expression

.40*

.57*

4. Anger control

-.12

-.06

-.09

5. Anxious attachment

.42*

.35*

.44*

.07

6. Avoidant attachment

-.11

-.36*

-.20

-.33

-.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), 151-168.

What is the proportion of variance in anger expression predicted by scores on physical violence? (The answer must be written as a number ca

ied 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:

Question4

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.

a. mean

b. median

c. mode

d. variance

Question5

Marks: 1

For this problem, and other problems in this exam, use the following hypothetical situation:

Researchers hypothesized that young adults would report a reduction in consumption of doughnuts after attending a psycho-educational 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.

a. (mean of group 1) - (mean of group 2)

b. mean of participant difference scores

c. co

elation coefficient

d. (sample mean) - (population mean)

Question6

Marks: 1

For this problem, and other problems in this exam, use the following hypothetical situation:

Researchers hypothesized that young adults would report a reduction in consumption of doughnuts after attending a psycho-educational 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.

a. between subjects

b. within subjects

c. subjects act as their own control

d. subjects appear in every level of the IV

Question7

Marks: 1

For this problem, and other problems in this exam, 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

?

E

o

?

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:

Question8

Marks: 1

For this problem, and other problems on this exam, use these data which are abstracted from a study investigating the relationship between attachment and anger regulation among Korean-American male batterers, N = 43 (Kim & Zane, 2004).

Variable

1

2

3

4

5

1. Physical violence

2. Anger experience

.21

3. Anger expression

.40*

.57*

4. Anger control

-.12

-.06

-.09

5. Anxious attachment

.42*

.35*

.44*

.07

6. Avoidant attachment

-.11

-.36*

-.20

-.33

-.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), 151-168.

Which of the following describe the general trend of the scores for the relationship between anger expression and anger experience?

Choose one answer.

a. none of these answers are co

ect

b. positive z scores on one variable tend to be paired with negative z scores on the other variable

c. positive z scores on one variable are just as likely to be paired with positive z scores as with negative z scores

d. positive z scores on one variable tend to be paired with positive z scores on the other variable

Question9

Marks: 1

In a two independent samples t test, which of the following describe the appropriate interpretation when p < .05?

Choose one answer.

a. chance is less than 5 in 100 that the means are drawn from the same population

b. if the experiment is conducted 100 times we would expect contrary findings in fewer than 5 of those experiments

c. one mean is higher than anothe

d. all...

1

Marks: 6

Please match the following terms with the appropriate description.

The mean of the sum of squares.

Range of scores in a distribution that includes 25% of the cases.

The average distance scores fall from the mean.

Based on a sample statistic, a range of scores likely to contain the population parameter.

Distribution of sample statistics based on infinite sampling.

The average distance a sample statistic can be expected to fall from its population value.

Question2

Marks: 1

For this problem and other problems in this exam, 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 school-related 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

.51

1.71

.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), 141-155.

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.

a. Type I e

o

b. Type II e

o

c. power of a test

d. confidence interval

Question3

Marks: 1

For this problem, and other problems on this exam, use these data which are abstracted from a study investigating the relationship between attachment and anger regulation among Korean-American male batterers, N = 43 (Kim & Zane, 2004).

Variable

1

2

3

4

5

1. Physical violence

2. Anger experience

.21

3. Anger expression

.40*

.57*

4. Anger control

-.12

-.06

-.09

5. Anxious attachment

.42*

.35*

.44*

.07

6. Avoidant attachment

-.11

-.36*

-.20

-.33

-.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), 151-168.

What is the proportion of variance in anger expression predicted by scores on physical violence? (The answer must be written as a number ca

ied 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:

Question4

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.

a. mean

b. median

c. mode

d. variance

Question5

Marks: 1

For this problem, and other problems in this exam, use the following hypothetical situation:

Researchers hypothesized that young adults would report a reduction in consumption of doughnuts after attending a psycho-educational 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.

a. (mean of group 1) - (mean of group 2)

b. mean of participant difference scores

c. co

elation coefficient

d. (sample mean) - (population mean)

Question6

Marks: 1

For this problem, and other problems in this exam, use the following hypothetical situation:

Researchers hypothesized that young adults would report a reduction in consumption of doughnuts after attending a psycho-educational 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.

a. between subjects

b. within subjects

c. subjects act as their own control

d. subjects appear in every level of the IV

Question7

Marks: 1

For this problem, and other problems in this exam, 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

?

E

o

?

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:

Question8

Marks: 1

For this problem, and other problems on this exam, use these data which are abstracted from a study investigating the relationship between attachment and anger regulation among Korean-American male batterers, N = 43 (Kim & Zane, 2004).

Variable

1

2

3

4

5

1. Physical violence

2. Anger experience

.21

3. Anger expression

.40*

.57*

4. Anger control

-.12

-.06

-.09

5. Anxious attachment

.42*

.35*

.44*

.07

6. Avoidant attachment

-.11

-.36*

-.20

-.33

-.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), 151-168.

Which of the following describe the general trend of the scores for the relationship between anger expression and anger experience?

Choose one answer.

a. none of these answers are co

ect

b. positive z scores on one variable tend to be paired with negative z scores on the other variable

c. positive z scores on one variable are just as likely to be paired with positive z scores as with negative z scores

d. positive z scores on one variable tend to be paired with positive z scores on the other variable

Question9

Marks: 1

In a two independent samples t test, which of the following describe the appropriate interpretation when p < .05?

Choose one answer.

a. chance is less than 5 in 100 that the means are drawn from the same population

b. if the experiment is conducted 100 times we would expect contrary findings in fewer than 5 of those experiments

c. one mean is higher than anothe

d. all...

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