Question 1

If you have ordinal data but a sample size that is large enough, you can use a parametric test.

Accepted Answer

A) True 
 B)False

Question 2

Fanny would like to simultaneously compare the means of three independent groups. She can use:

Accepted Answer

A)  ANOVA only 
B)  Independent samples t-test only 
C)  ANOVA or independent samples t-test 
D)  Chi-square test only 
A)  ANOVA only 
B)  Independent samples t-test only 
C)  ANOVA or independent samples t-test 
D)  Chi-square test only

Question 3

When a correlation between two variables exists, that means that the means of both variables are significantly different.

Accepted Answer

A) True 
 B)False

Question 4

A dependent samples t-test allows you to test…

Accepted Answer

A)  Whether a difference between two related samples exists 
B)  Whether two means are different from one another 
C)  Whether subjects in a sample differ from the population mean on average 
D)  Whether samples in a sample differ from a normal distribution 
A)  Whether a difference between two related samples exists 
B)  Whether two means are different from one another 
C)  Whether subjects in a sample differ from the population mean on average 
D)  Whether samples in a sample differ from a normal distribution

Question 5

Responses measured with a Likert scale can be treated as interval or ordinal data.

Accepted Answer

A) True 
 B)False

Question 6

Gianna wants to find out if the intelligence scores of a group of students on a gluten-free diet is different from the average intelligence of students on a non-gluten-free diet. What test is most suited to Gianna's research?

Accepted Answer

A)  A correlation 
B)  A z-test 
C)  An independent samples t-test 
D)  A dependent samples t-test 
A)  A correlation 
B)  A z-test 
C)  An independent samples t-test 
D)  A dependent samples t-test

Question 7

Which of the following tests assumes that the Central Limit Theorem is true?

Accepted Answer

A)  ANOVA 
B)  Wilcoxon signed-rank test 
C)  Chi-square test 
D)  Mann-Whitney U-test 
A)  ANOVA 
B)  Wilcoxon signed-rank test 
C)  Chi-square test 
D)  Mann-Whitney U-test

Question 8

If you are conducting research and do not know the mean of the underlying population, which of the tests below would you immediately not be able to use?

Accepted Answer

A)  Pearson correlation coefficient 
B)  One-way ANOVA 
C)  Single-sample t-test 
D)  Mann-Whitney U-test 
A)  Pearson correlation coefficient 
B)  One-way ANOVA 
C)  Single-sample t-test 
D)  Mann-Whitney U-test

Question 9

Parametric tests have assumptions that do not exist in non-parametric tests.

Accepted Answer

A) True 
 B)False

Question 10

If Judy wants to compare two means that are drawn from different samples, she should use the independent samples t-test.

Accepted Answer

A) True 
 B)False

If you have ordinal data but a sample size that is large enough, you can use a parametric test.

Fanny would like to simultaneously compare the means of three independent groups. She can use:

When a correlation between two variables exists, that means that the means of both variables are significantly different.

A dependent samples t-test allows you to test…

Responses measured with a Likert scale can be treated as interval or ordinal data.

Gianna wants to find out if the intelligence scores of a group of students on a gluten-free diet is different from the average intelligence of students on a non-gluten-free diet. What test is most suited to Gianna's research?

Which of the following tests assumes that the Central Limit Theorem is true?

If you are conducting research and do not know the mean of the underlying population, which of the tests below would you immediately not be able to use?

Parametric tests have assumptions that do not exist in non-parametric tests.

If Judy wants to compare two means that are drawn from different samples, she should use the independent samples t-test.

Introduction: Statistics--Who Needs Them

Types of Data

A Picture Is Worth a Thousand Words: Creating and Interpreting Graphics

Measures of Central Tendency: Whats so Average About the Mean

Variability: the Law of Life

Where Am I Normal Distributions and Standard Scores

Basic Probability Theory

The Central Limit Theorem and Hypothesis Testing

The Z-Test

The T-Test

Analysis of Variance

Confidence Intervals and Effect Size: Building a Better Mousetrap

Correlation and Regression: Are We Related

The Chi-Square Test

Non-Parametric Tests

Filters

Exam 16: Which Test Should I Use and Why

If you have ordinal data but a sample size that is large enough, you can use a parametric test.

Fanny would like to simultaneously compare the means of three independent groups. She can use:

When a correlation between two variables exists, that means that the means of both variables are significantly different.

A dependent samples t-test allows you to test…

Responses measured with a Likert scale can be treated as interval or ordinal data.

Gianna wants to find out if the intelligence scores of a group of students on a gluten-free diet is different from the average intelligence of students on a non-gluten-free diet. What test is most suited to Gianna's research?

Which of the following tests assumes that the Central Limit Theorem is true?

If you are conducting research and do not know the mean of the underlying population, which of the tests below would you immediately not be able to use?

Parametric tests have assumptions that do not exist in non-parametric tests.

If Judy wants to compare two means that are drawn from different samples, she should use the independent samples t-test.

Introduction: Statistics--Who Needs Them

Types of Data

A Picture Is Worth a Thousand Words: Creating and Interpreting Graphics

Measures of Central Tendency: Whats so Average About the Mean

Variability: the Law of Life

Where Am I Normal Distributions and Standard Scores

Basic Probability Theory

The Central Limit Theorem and Hypothesis Testing

The Z-Test

The T-Test

Analysis of Variance

Confidence Intervals and Effect Size: Building a Better Mousetrap

Correlation and Regression: Are We Related

The Chi-Square Test

Non-Parametric Tests

Filters