Question 1

When we use the phrase "within group" we mean

Accepted Answer

A)  the variability of the group means. 
B)  the variability within the group means. 
C)  the variability calculated for the scores within each group separately. 
D)  the variability within all of the data points. 
A)  the variability of the group means. 
B)  the variability within the group means. 
C)  the variability calculated for the scores within each group separately. 
D)  the variability within all of the data points.

Question 2

Calculate t using Fisher's Least Significance Difference test to determine which groups are significantly different from one another in the previous example.

Accepted Answer

Group 2 had a signif

Question 3

In multiple comparison procedures, post-hoc tests are completed after the ANOVA. Why are post-hoc tests preferred over running several t-tests?

Accepted Answer

A)  They decrease the probability of a Type I error. 
B)  They do not control familywise error rate. 
C)  It increases the probability of a Type I error. 
D)  They are more likely to be significant. 
A)  They decrease the probability of a Type I error. 
B)  They do not control familywise error rate. 
C)  It increases the probability of a Type I error. 
D)  They are more likely to be significant.

Question 4

If we had the following pattern of population means (μ1 = μ2 = μ3 ≠ μ4) we would hope to conclude that

Accepted Answer

A)  the null hypothesis is false. 
B)  the null hypothesis is true. 
C)  the null hypothesis is confused. 
D)  the experiment will have very little power. 
A)  the null hypothesis is false. 
B)  the null hypothesis is true. 
C)  the null hypothesis is confused. 
D)  the experiment will have very little power.

Question 5

F is the ratio of MSgroup divided by MSerror.

Accepted Answer

A) True 
 B)False

When we use the phrase "within group" we mean

Calculate t using Fisher's Least Significance Difference test to determine which groups are significantly different from one another in the previous example.

In multiple comparison procedures, post-hoc tests are completed after the ANOVA. Why are post-hoc tests preferred over running several t-tests?

If we had the following pattern of population means (μ₁ = μ₂ = μ₃ ≠ μ₄) we would hope to conclude that

F is the ratio of MS_group divided by MS_error.

Introduction

Basic Concepts

Displaying Data

Measures of Central Tendency

Measures of Variability

The Normal Distribution

Basic Concepts of Probability

Sampling Distributions and Hypothesis Testing

Correlation

Regression

Multiple Regression

Hypothesis Tests Applied to Means: One Sample

Hypothesis Tests Applied to Means: Two Related Samples

Hypothesis Tests Applied to Means: Two Independent Samples

Power

Factorial Analysis of Variance

Repeated-Measures Analysis of Variance

Chi-Square

Nonparametric and Resampling Statistical Tests

Meta-Analysis

Filters

Exam 16: One-Way Analysis of Variance

When we use the phrase "within group" we mean

Calculate t using Fisher's Least Significance Difference test to determine which groups are significantly different from one another in the previous example.

In multiple comparison procedures, post-hoc tests are completed after the ANOVA. Why are post-hoc tests preferred over running several t-tests?

If we had the following pattern of population means (μ1 = μ2 = μ3 ≠ μ4) we would hope to conclude that

F is the ratio of MSgroup divided by MSerror.

Introduction

Basic Concepts

Displaying Data

Measures of Central Tendency

Measures of Variability

The Normal Distribution

Basic Concepts of Probability

Sampling Distributions and Hypothesis Testing

Correlation

Regression

Multiple Regression

Hypothesis Tests Applied to Means: One Sample

Hypothesis Tests Applied to Means: Two Related Samples

Hypothesis Tests Applied to Means: Two Independent Samples

Power

Factorial Analysis of Variance

Repeated-Measures Analysis of Variance

Chi-Square

Nonparametric and Resampling Statistical Tests

Meta-Analysis

Filters

If we had the following pattern of population means (μ₁ = μ₂ = μ₃ ≠ μ₄) we would hope to conclude that

F is the ratio of MS_group divided by MS_error.