Question 1

To find the total degrees of freedom, one must ______.

Accepted Answer

A)  subtract 1 from the number of groups 
B)  subtract the number of groups from the total number of observations 
C)  subtract 1 from the total number of observations 
D)  divide each groups mean by the within-groups sum of squares and then divide the result by the total number of groups. 
A)  subtract 1 from the number of groups 
B)  subtract the number of groups from the total number of observations 
C)  subtract 1 from the total number of observations 
D)  divide each groups mean by the within-groups sum of squares and then divide the result by the total number of groups.

Question 2

A problem with conducting multiple t-tests on more than two sample means is ______.

Accepted Answer

A)  the alpha level increases with each test making it easier to commit a Type I error 
B)  the alpha level decreases with each test making it easier to commit a Type I error 
C)  the alpha level increases with each test making it easier to commit a Type II error 
D)  the alpha level decreases with each test making it easier to commit a Type II error 
A)  the alpha level increases with each test making it easier to commit a Type I error 
B)  the alpha level decreases with each test making it easier to commit a Type I error 
C)  the alpha level increases with each test making it easier to commit a Type II error 
D)  the alpha level decreases with each test making it easier to commit a Type II error

Question 3

. Explain why an ANOVA is required for more than two groups as compared to multiple t-tests. Be sure to describe the assumption of t-tests and implications for Type I error.

Accepted Answer

Answers may vary.
The problem with multi

Question 4

Which test allows for the researcher to identify which means are significantly different from each other?

Accepted Answer

A)  ANOVA 
B)  Tukey's HSD 
C)  Eta squared 
D)  F statistic 
A)  ANOVA 
B)  Tukey's HSD 
C)  Eta squared 
D)  F statistic

Question 5

Which of the following eta squared results would indicate a strong relationship between the dependent and independent variable?

Accepted Answer

A)  .19 
B)  .29 
C)  .49 
D)  .79 
A)  .19 
B)  .29 
C)  .49 
D)  .79

To find the total degrees of freedom, one must ______.

A problem with conducting multiple t-tests on more than two sample means is ______.

. Explain why an ANOVA is required for more than two groups as compared to multiple t-tests. Be sure to describe the assumption of t-tests and implications for Type I error.

Which test allows for the researcher to identify which means are significantly different from each other?

Which of the following eta squared results would indicate a strong relationship between the dependent and independent variable?

The Importance of Statistics in the Criminological Sciences or Why Do I Have to Learn This Stuff

Levels of Measurement and Aggregation

Data Visualization Techniques: Ways of Understanding Data Distributions

Measures of Central Tendency

Measures of Dispersion

Probability, Probability Distributions, and an Introduction to Inferential Statistics

Point Estimation and Confidence Intervals

From Estimation to Statistical Tests: Hypothesis Testing for One Population Mean and Proportion

Testing Hypotheses With Categorical Data

Hypothesis Tests Involving Two Population Means or Proportions

Bivariate Correlation and Regression

Controlling for a Third Variable: Multiple OlS Regression

Regression Analysis With a Dichotomous Dependent Variable: Logit Models

Filters

Exam 11: Hypothesis Involving Three or More Population Means: Analysis of Variance

To find the total degrees of freedom, one must ______.

A problem with conducting multiple t-tests on more than two sample means is ______.

. Explain why an ANOVA is required for more than two groups as compared to multiple t-tests. Be sure to describe the assumption of t-tests and implications for Type I error.

Which test allows for the researcher to identify which means are significantly different from each other?

Which of the following eta squared results would indicate a strong relationship between the dependent and independent variable?

The Importance of Statistics in the Criminological Sciences or Why Do I Have to Learn This Stuff

Levels of Measurement and Aggregation

Data Visualization Techniques: Ways of Understanding Data Distributions

Measures of Central Tendency

Measures of Dispersion

Probability, Probability Distributions, and an Introduction to Inferential Statistics

Point Estimation and Confidence Intervals

From Estimation to Statistical Tests: Hypothesis Testing for One Population Mean and Proportion

Testing Hypotheses With Categorical Data

Hypothesis Tests Involving Two Population Means or Proportions

Bivariate Correlation and Regression

Controlling for a Third Variable: Multiple OlS Regression

Regression Analysis With a Dichotomous Dependent Variable: Logit Models

Filters