Question 1

In order to create the figure, which of the following pieces of information would you need?

Accepted Answer

A)  The mean optimism scores of people who voted and people who did not vote 
B)  The correlation coefficient between voting behavior and optimism 
C)  The number of people who voted and did not vote in 2016 
D)  Each individual participant's optimism score 
A)  The mean optimism scores of people who voted and people who did not vote 
B)  The correlation coefficient between voting behavior and optimism 
C)  The number of people who voted and did not vote in 2016 
D)  Each individual participant's optimism score

Question 2

Which of the following could you conclude by looking at the figure?

Accepted Answer

A)  There is a causal relationship between optimism and life satisfaction. 
B)  As optimism increases, life satisfaction also increases. 
C)  The relationship between optimism and life satisfaction is negative. 
D)  More people reported being optimistic than being satisfied with life. 
A)  There is a causal relationship between optimism and life satisfaction. 
B)  As optimism increases, life satisfaction also increases. 
C)  The relationship between optimism and life satisfaction is negative. 
D)  More people reported being optimistic than being satisfied with life.

Question 3

A study finds a correlation coefficient of r = .52 and reports p < .05. The p value indicates which of the following?

Accepted Answer

A) The correlation is negative. 
B) The correlation is unlikely to have come from a zero association population. 
C) The correlation is not statistically significant. 
D) The effect size is large. 
A) The correlation is negative. 
B) The correlation is unlikely to have come from a zero association population. 
C) The correlation is not statistically significant. 
D) The effect size is large.

Question 4

When examining an association in which one variable is categorical and one is quantitative, which of the following is NOT likely to be used?

Accepted Answer

A) A t test 
B) A correlation 
C) A scatterplot 
D) A bar graph 
A) A t test 
B) A correlation 
C) A scatterplot 
D) A bar graph

Question 5

Dr. Guidry conducts a study examining the relationship between the number of friends one has and the experience of daily stress and life satisfaction. She randomly samples 1,500 elderly men and women in Nashville, Tennessee (the state capital), located in the southern United States. Below are her findings.
•Life satisfaction and experience of daily stress: r =.57 (p = .01)
•Number of friends one has and experience of daily stress: r = .09, not sig.
•Number of friends one has and life satisfaction: r = .36 (p = .04)
Considering Dr. Guidry's study, her results could most safely be generalized to which of the following groups?

Accepted Answer

A) People in the southern United States 
B) Elderly people 
C) People with a high number of friends 
D) People with high life satisfaction 
A) People in the southern United States 
B) Elderly people 
C) People with a high number of friends 
D) People with high life satisfaction

In order to create the figure, which of the following pieces of information would you need?

Which of the following could you conclude by looking at the figure?

A study finds a correlation coefficient of r = .52 and reports p < .05. The p value indicates which of the following?

When examining an association in which one variable is categorical and one is quantitative, which of the following is NOT likely to be used?

Psychology Is a Way of Thinking

Sources of Information: Why Research Is Best and How to Find It

Three Claims, Four Validities: Interrogation Tools for Consumers of Research

Ethical Guidelines for Psychology Research

Identifying Good Measurement

Surveys and Observations: Describing What People Do

Sampling: Estimating the Frequency of Behaviors and Beliefs

Multivariate Correlational Research

Introduction to Simple Experiments

More on Experiments: Confounding and Obscuring Variables

Experiments With More Than One Independent Variable

Quasi-Experiments and Small-N Designs

Replication, Generalization, and the Real World

Filters

Exam 8: Bivariate Correlational Research

In order to create the figure, which of the following pieces of information would you need?

Which of the following could you conclude by looking at the figure?

A study finds a correlation coefficient of r = .52 and reports p < .05. The p value indicates which of the following?

When examining an association in which one variable is categorical and one is quantitative, which of the following is NOT likely to be used?

Psychology Is a Way of Thinking

Sources of Information: Why Research Is Best and How to Find It

Three Claims, Four Validities: Interrogation Tools for Consumers of Research

Ethical Guidelines for Psychology Research

Identifying Good Measurement

Surveys and Observations: Describing What People Do

Sampling: Estimating the Frequency of Behaviors and Beliefs

Multivariate Correlational Research

Introduction to Simple Experiments

More on Experiments: Confounding and Obscuring Variables

Experiments With More Than One Independent Variable

Quasi-Experiments and Small-N Designs

Replication, Generalization, and the Real World

Filters