Question 1

The notation
   is used to calculate

Accepted Answer

A)  SS between 
B)  SS within 
C)  SS total 
D)  MS error 
A)  SS between 
B)  SS within 
C)  SS total 
D)  MS error

Question 2

An important assumption in the one-way analysis of variance is that

Accepted Answer

A)  observations are random. 
B)  observations are independent. 
C)  subjects are related. 
D)  there are equal numbers of observations in each group. 
A)  observations are random. 
B)  observations are independent. 
C)  subjects are related. 
D)  there are equal numbers of observations in each group.

Question 3

Unequal sample sizes in a one-way analysis of variance are generally

Accepted Answer

A)  a major problem. 
B)  a minor inconvenience. 
C)  something to be avoided at all costs. 
D)  impossible. 
A)  a major problem. 
B)  a minor inconvenience. 
C)  something to be avoided at all costs. 
D)  impossible.

Question 4

The notation Σ( X -  ..)2 produces the term we call the

Accepted Answer

A)  SS between 
B)  SS within 
C)  SS total 
D)  MS error 
A)  SS between 
B)  SS within 
C)  SS total 
D)  MS error

Question 5

The larger the ratio of   the more likely that the group means differ significantly one another significantly.

Accepted Answer

A) True 
 B)False

Question 6

In the analysis of variance, MSGroups measures how different group means are, and MSerror measures variability within each group. If the null hypothesis were false, what would we expect to find?

Accepted Answer

A)  That MSgroups and MSerror would be roughly equal. 
B)  That MSgroups would be larger than MSerror. 
C)  That MSerror is larger than MSgroups. 
D)  That MSerror is close to zero. 
A)  That MSgroups and MSerror would be roughly equal. 
B)  That MSgroups would be larger than MSerror. 
C)  That MSerror is larger than MSgroups. 
D)  That MSerror is close to zero.

Question 7

Name 3 assumptions underlying a one-way ANOVA.

Accepted Answer

The three assumption

Question 8

The following analysis of variance summary table applies to the next several questions.
 
How many groups were there in this experiment?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 9

Given the following information, what are the degrees of freedom for the numerator and the denominator. 
a. k = 5, N = 400 
b. k = 3, N = 75 
c. k = 4, N = 98

Accepted Answer

a. 4, 395

Question 10

The magnitude of effect in a study was calculated to yield values for both η2 and ω2. Which of the following relationships between η2 and ω2 is likely?

Accepted Answer

A)  η2 = ω2 
B)  η2 > ω2 
C)  η2 ω 2 
D)  none of the above 
A)  η2 = ω2 
B)  η2 > ω2 
C)  η2 ω 2 
D)  none of the above

Question 11

The mean square error (MSerror) is a measure of

Accepted Answer

A)  how different the group means are. 
B)  whether the dependent variable was measured incorrectly. 
C)  how much variability there is within each group. 
D)  whether the ANOVA is significant. 
A)  how different the group means are. 
B)  whether the dependent variable was measured incorrectly. 
C)  how much variability there is within each group. 
D)  whether the ANOVA is significant.

Question 12

The analysis of variance differs from a t test for two independent samples because

Accepted Answer

A)  the t test is limited to 2 samples. 
B)  the analysis of variance can handle multiple samples. 
C)  they test different hypotheses. 
D)  both a and b 
A)  the t test is limited to 2 samples. 
B)  the analysis of variance can handle multiple samples. 
C)  they test different hypotheses. 
D)  both a and b

Question 13

For an F value to be significant it must

Accepted Answer

A)  be positive. 
B)  equal 1.0. 
C)  exceed the tabled value. 
D)  be less than the tabled value. 
A)  be positive. 
B)  equal 1.0. 
C)  exceed the tabled value. 
D)  be less than the tabled value.

Question 14

In the Eysenck study of recall of lists of words, a significant F in the analysis of variance would at the least tell us that

Accepted Answer

A)  greater processing leads to greater recall. 
B)  less processing leads to greater recall. 
C)  the recall means are different in the different groups. 
D)  none of the above 
A)  greater processing leads to greater recall. 
B)  less processing leads to greater recall. 
C)  the recall means are different in the different groups. 
D)  none of the above

Question 15

When we use the phrase "omnibus null hypothesis" we are referring to

Accepted Answer

A)  μ 1 = μ 2 
B)  μ 1 = μ 2 = μ 3 = μ 4 
C)  μ 1 = μ 2 ≠ μ 3 = μ 4 
D)  μ 1 ≠ μ 2 
A)  μ 1 = μ 2 
B)  μ 1 = μ 2 = μ 3 = μ 4 
C)  μ 1 = μ 2 ≠ μ 3 = μ 4 
D)  μ 1 ≠ μ 2

Question 16

The column of mean squares in the analysis of variance is obtained by

Accepted Answer

A)  dividing the sums of squares by the degrees of freedom. 
B)  multiplying the degrees of freedom times the sums of squares. 
C)  dividing the sum of squares for treatments by the sum of squares for error. 
D)  dividing the degrees of freedom by each other. 
A)  dividing the sums of squares by the degrees of freedom. 
B)  multiplying the degrees of freedom times the sums of squares. 
C)  dividing the sum of squares for treatments by the sum of squares for error. 
D)  dividing the degrees of freedom by each other.

Question 17

When analyzing results of an ANOVA we are most interested in the _______.

Accepted Answer

A)  F Statistic 
B)  t Statistic 
C)  R Squared 
D)  both a and c 
A)  F Statistic 
B)  t Statistic 
C)  R Squared 
D)  both a and c

Question 18

If we run six independent comparisons among means, each at the five percent level, the overall familywise error rate will be approximately

Accepted Answer

A)  .05. 
B)  .05/6. 
C)  .30. 
D)  .01. 
A)  .05. 
B)  .05/6. 
C)  .30. 
D)  .01.

Question 19

In the analysis of variance, the more the null hypothesis is false,

Accepted Answer

A)  the larger the value of F . 
B)  the smaller the value of F . 
C)  the smaller the value of the correlation coefficient. 
D)  the harder it is to find a significant difference. 
A)  the larger the value of F . 
B)  the smaller the value of F . 
C)  the smaller the value of the correlation coefficient. 
D)  the harder it is to find a significant difference.

Question 20

Cohen's
  is generally a better measure than η 2 or w  2  because

Accepted Answer

A)  it is more specific to individual treatments. 
B)  it is less biased than any other measure. 
C)  it pulls together information from all of the treatments. 
D)  It actually is a worse measure than the others. 
A)  it is more specific to individual treatments. 
B)  it is less biased than any other measure. 
C)  it pulls together information from all of the treatments. 
D)  It actually is a worse measure than the others.

Exam 16: One-Way Analysis of Variance

The notation is used to calculate

An important assumption in the one-way analysis of variance is that

Unequal sample sizes in a one-way analysis of variance are generally

The notation Σ( X - ..)2 produces the term we call the

The larger the ratio of the more likely that the group means differ significantly one another significantly.

In the analysis of variance, MSGroups measures how different group means are, and MSerror measures variability within each group. If the null hypothesis were false, what would we expect to find?

Name 3 assumptions underlying a one-way ANOVA.

The following analysis of variance summary table applies to the next several questions. How many groups were there in this experiment?

Given the following information, what are the degrees of freedom for the numerator and the denominator. a. k = 5, N = 400 b. k = 3, N = 75 c. k = 4, N = 98

The magnitude of effect in a study was calculated to yield values for both η2 and ω2. Which of the following relationships between η2 and ω2 is likely?

The mean square error (MSerror) is a measure of

The analysis of variance differs from a t test for two independent samples because

For an F value to be significant it must

In the Eysenck study of recall of lists of words, a significant F in the analysis of variance would at the least tell us that

When we use the phrase "omnibus null hypothesis" we are referring to

The column of mean squares in the analysis of variance is obtained by

When analyzing results of an ANOVA we are most interested in the _______.

If we run six independent comparisons among means, each at the five percent level, the overall familywise error rate will be approximately

In the analysis of variance, the more the null hypothesis is false,

Cohen's is generally a better measure than η 2 or w 2 because

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

The notation Σ( X - ..)² produces the term we call the

In the analysis of variance, MS_Groups measures how different group means are, and MS_error measures variability within each group. If the null hypothesis were false, what would we expect to find?

The magnitude of effect in a study was calculated to yield values for both η² and ω². Which of the following relationships between η² and ω² is likely?

The mean square error (MS_error) is a measure of

Cohen's is generally a better measure than η ² or w ² because