Question 1

The person who developed ANOVA was

Accepted Answer

A)  W. S. Gosset, a businessman 
B)  John W. Tukey, a statistician 
C)  "student," a pseudonym 
D)  Ronald A. Fisher, a biologist. 
A)  W. S. Gosset, a businessman 
B)  John W. Tukey, a statistician 
C)  "student," a pseudonym 
D)  Ronald A. Fisher, a biologist.

Question 2

Data Set 11-3: The baseline of each curve represents scores on the dependent variable (just like the curves in the book).
  
-Refer to Data Set 11-3. The denominator of the F ratio would be largest for an ANOVA inExperiment

Accepted Answer

A)  X 
B)  Y 
C)  Z 
D) Y and Z 
A)  X 
B)  Y 
C)  Z 
D) Y and Z

Question 3

If the null hypothesis is true, mean square__________ will be a good estimate of the population variance.

Accepted Answer

A)  error 
B)  treatment 
C)  both of the descriptive alternatives are correct 
D)  neither of the descriptive alternatives is correct. 
A)  error 
B)  treatment 
C)  both of the descriptive alternatives are correct 
D)  neither of the descriptive alternatives is correct.

Question 4

Data Set 11-8: $$\begin{array} { c c c } 
\text { Group A } & \text { Group B } & \text { Group C } \
\hline 8 & 5 & 1 \
10 & 10 & 10 \
12 & 15 & 19
\end{array}$$
-Descriptions for Groups A, B, and C in Data Set 11-8 follow. For which would the ANOVA described in Chapter 11 not be appropriate?

Accepted Answer

A)  New Yorkers, Bostonians, Chicagoers 9 political participants 
B)  age 16, age 20, age 24 3 female participants 
C)  freshmen, sophomores, seniors 9 student participants 
D)  all of the other alternatives are correct. 
A)  New Yorkers, Bostonians, Chicagoers 9 political participants 
B)  age 16, age 20, age 24 3 female participants 
C)  freshmen, sophomores, seniors 9 student participants 
D)  all of the other alternatives are correct.

Question 5

This experiment was designed to determine the effect of effort during learning or persistence (resistance to extinction). A learning theorist required rats to climb inclined planes for food reward and then extinguished them on the same inclined planes. Three groups of rats were used-one group on a 10° plane, one on a 20° plane, and one on a 30° plane. The data below are responses during extinction. Analyze them completely. What conclusion should the learning theorist reach?
-Data Set 3b: $$\begin{array} { c c c } 
\text { Group } 1 \left( 10 ^ { \circ } \right) & \text { Group } 2 \left( 20 ^ { \circ } \right) & \text { Group } 3 \left( 30 ^ { \circ } \right) \
\hline 8 & 10 & 13 \
7 & 10 & 12 \
6 & 9 & 12 \
4 & 7 & 10 \
4 & 7 & 9 \
3 & 6 & 9
\end{array}$$

Accepted Answer

The more effort during learning, the gre

Question 6

dferror =

Accepted Answer

A)  Ntot - 1 
B)  K - 1 
C)  K(Ntot - 1) 
D)  Ntot - K. 
A)  Ntot - 1 
B)  K - 1 
C)  K(Ntot - 1) 
D)  Ntot - K.

Question 7

The tabled F.05 value for an experiment comparing males and females, an experiment in whichdferror = 20, is

Accepted Answer

A)  3.49 
B)  5.85 
C)  4.35 
D)  8.10 
A)  3.49 
B)  5.85 
C)  4.35 
D)  8.10

Question 8

A researcher gathered responses to Piagetian conservation of volume problems from four groups of children. Each child was scored from 1 (no understanding) to 11 (thorough understanding). The following statistics were calculated. Examine the means carefully, pick the most important comparison, and calculate a Tukey HSD and a d value. In a sentence or two tell what these data show. $\begin{array}{ccccc} 
& \text { 3 year olds } & 6 \text { year olds } & 9 \text { year olds } & 12 \text { year olds } \
\bar{X} & 0.4 & 1.5 & 8.9 & 9.8 \
N & 10 & 9 & 8 & 7
\end{array}$
$F=\frac{60}{15}=4.00$

Accepted Answer

F_.05(3,30 df) = 2.92. Reject the null hypot

Question 9

If the null hypothesis is false,______________ will be a good estimate of the population variance.

Accepted Answer

A)  the error mean square 
B)  the treatment mean square 
C)  both of the descriptive alternatives are correct 
D)  neither of the descriptive alternatives is correct. 
A)  the error mean square 
B)  the treatment mean square 
C)  both of the descriptive alternatives are correct 
D)  neither of the descriptive alternatives is correct.

Question 10

Two schedules for giving rest were compared-the massed schedule and the spaced schedule. Twenty observations of the spaced schedule produced a mean of 26 errors. On the massed schedule 14 observations resulted in a mean of 36 errors. An $\alpha$level of .05 was adopted and an F = 4.21 was obtained. What conclusion is appropriate?

Accepted Answer

A)  The null hypothesis should be retained. 
B)  Massed practice produces fewer errors than spaced practice. 
C)  Spaced practice produces fewer errors than massed practice. 
A)  The null hypothesis should be retained. 
B)  Massed practice produces fewer errors than spaced practice. 
C)  Spaced practice produces fewer errors than massed practice.

Question 11

How many degrees of freedom are there for the numerator and denominator of an F test if there are three groups with ten participants in each?

Accepted Answer

A)  310 
B)  2 9 
C)  3 10 
D)  2 27. 
A)  310 
B)  2 9 
C)  3 10 
D)  2 27.

Question 12

Data Set 11-5: $$\begin{array} { r r c } 
\text { Group A } & \text { Group B } & \text { Group C } \
\hline8 & 13 & 15 \
10 & 15 & 17
\end{array}$$
-The largest HSD in Data Set 11-5 would be found in comparing

Accepted Answer

A)  A vs B 
B)  A vs C 
C)  B vs C 
D)  cannot be determined from the information given. 
A)  A vs B 
B)  A vs C 
C)  B vs C 
D)  cannot be determined from the information given.

Question 13

Suppose you found a way to redo a study so that the SSerror was reduced compared to the first time you ran the experiment. The SStreat stayed the same as before. The effect of this will be to

Accepted Answer

A)  increase the population variance 
B)  be more likely to detect population differences if there are any 
C)  increase the degrees of freedom 
D)  all of the descriptive alternatives are correct. 
A)  increase the population variance 
B)  be more likely to detect population differences if there are any 
C)  increase the degrees of freedom 
D)  all of the descriptive alternatives are correct.

Question 14

Males and females were compared for the mean number of smiles during a five-minute inter-view. The 30 males' mean was 3.62 and the 24 females' mean was 5.04. An $\alpha$ level of .05 was adopted and an F = 4.02 was obtained. What conclusion is appropriate?

Accepted Answer

A)  The null hypothesis should be retained. 
B)  Females smile more than males. 
C)  Males smile more than females. 
A)  The null hypothesis should be retained. 
B)  Females smile more than males. 
C)  Males smile more than females.

Question 15

Which symbol below will most quickly tell you the number of levels of the independent variable?

Accepted Answer

A)  N 
B)  K 
C)  F 
D)  SS. 
A)  N 
B)  K 
C)  F 
D)  SS.

Question 16

The assumptions of analysis of variance are more numerous than those for the independent samples t test.

Accepted Answer

A) True 
 B)False

Question 17

The faculty members of a student-nursing program wanted to increase the sensitivity of their students to the psychological trauma experienced by hospitalized patients. They randomly assigned each of 30 students to one of three weekend workshops: 1) an acceptance and commitment workshop; 2) a mindfulness workshop; or 3) a control group that attended an exercise program. One week after the workshops, patients attended by these students completed a questionnaire designed to measure the students' sensitivity. High scores indicate high sensitivity. Analyze the data with ANOVA. What decision should the faculty make? $$\begin{array} { c c c } 
\text { A \& C Workshop } & \text { Mindfulness Workshop } & \text { Exercise Program } \
\hline 18 & 16 & 14 \
17 & 15 & 14 \
15 & 15 & 13 \
12 & 15 & 12 \
12 & 13 & 12 \
11 & 12 & 12 \
9 & 10 & 11 \
8 & 8 & 10 \
6 & 7 & 9 \
5 & 4 & 8
\end{array}$$

Accepted Answer

Retain the null hypothesis. There is no

Question 18

When the null hypothesis is true, which of the following is a good estimate of the population variance?

Accepted Answer

A)  MStreat 
B)  MSerror 
C)  both of the descriptive alternatives are correct 
D)  neither of the descriptive alternatives is correct. 
A)  MStreat 
B)  MSerror 
C)  both of the descriptive alternatives are correct 
D)  neither of the descriptive alternatives is correct.

Question 19

Data Set 11-4: The baseline of each curve represents scores on the dependent variable (just like the curves in the book).
  
-Refer to Data Set 11-4. The null hypothesis is true in Experiment

Accepted Answer

A)  X 
B)  Y 
C)  Z 
D)  X and Y 
A)  X 
B)  Y 
C)  Z 
D)  X and Y

Question 20

For a one way ANOVA, which of the following is a medium effect size index, d?

Accepted Answer

A)  0.05 
B)  0.50 
C)  0.95 
D)  1.0 to 2.0 
A)  0.05 
B)  0.50 
C)  0.95 
D)  1.0 to 2.0

The person who developed ANOVA was

Data Set 11-3: The baseline of each curve represents scores on the dependent variable (just like the curves in the book). -Refer to Data Set 11-3. The denominator of the F ratio would be largest for an ANOVA inExperiment

If the null hypothesis is true, mean square__________ will be a good estimate of the population variance.

Data Set 11-8: Group A Group B Group C 8 5 1 10 10 10 12 15 19 -Descriptions for Groups A, B, and C in Data Set 11-8 follow. For which would the ANOVA described in Chapter 11 not be appropriate?

df_error =

The tabled F_.05value for an experiment comparing males and females, an experiment in whichdf_error = 20, is

If the null hypothesis is false,______________ will be a good estimate of the population variance.

How many degrees of freedom are there for the numerator and denominator of an F test if there are three groups with ten participants in each?

Data Set 11-5: Group A Group B Group C 8 13 15 10 15 17 -The largest HSD in Data Set 11-5 would be found in comparing

Suppose you found a way to redo a study so that the SS_erro_rwas reduced compared to the first time you ran the experiment. The SS_treatstayed the same as before. The effect of this will be to

Males and females were compared for the mean number of smiles during a five-minute inter-view. The 30 males' mean was 3.62 and the 24 females' mean was 5.04. An $\alpha$ level of .05 was adopted and an F = 4.02 was obtained. What conclusion is appropriate?

Which symbol below will most quickly tell you the number of levels of the independent variable?

The assumptions of analysis of variance are more numerous than those for the independent samples t test.

When the null hypothesis is true, which of the following is a good estimate of the population variance?

Data Set 11-4: The baseline of each curve represents scores on the dependent variable (just like the curves in the book). -Refer to Data Set 11-4. The null hypothesis is true in Experiment

For a one way ANOVA, which of the following is a medium effect size index, d?

Introduction

Exploring Data: Frequency Distributions and Graphs

Exploring Data: Central Tendency

Exploring Data: Variability

Other Descriptive Statistics

Correlation and Regression

Theoretical Distributions Including the Normal Distribution

Samples, Sampling Distributions, and Confidence Intervals

Hypothesis Testing and Effect Size: One-Sample Designs

Hypothesis Testing, Effect Size, and and Confidence Intervals: Two-Sample Designs

Analysis of Variance: One-Factor Repeated Measures

Analysis of Variance: Factorial Design

Chi Square Tests

More Nonparametric Tests

Appendix: Grouped Frequency Distributions and Central Tendency

Filters

Exam 11: Analysis of Variance: One-Way Classification

The person who developed ANOVA was

Data Set 11-3: The baseline of each curve represents scores on the dependent variable (just like the curves in the book). -Refer to Data Set 11-3. The denominator of the F ratio would be largest for an ANOVA inExperiment

If the null hypothesis is true, mean square__________ will be a good estimate of the population variance.

Data Set 11-8: Group A Group B Group C 8 5 1 10 10 10 12 15 19 -Descriptions for Groups A, B, and C in Data Set 11-8 follow. For which would the ANOVA described in Chapter 11 not be appropriate?

dferror =

The tabled F.05 value for an experiment comparing males and females, an experiment in whichdferror = 20, is

If the null hypothesis is false,______________ will be a good estimate of the population variance.

How many degrees of freedom are there for the numerator and denominator of an F test if there are three groups with ten participants in each?

Data Set 11-5: Group A Group B Group C 8 13 15 10 15 17 -The largest HSD in Data Set 11-5 would be found in comparing

Suppose you found a way to redo a study so that the SSerror was reduced compared to the first time you ran the experiment. The SStreat stayed the same as before. The effect of this will be to

Males and females were compared for the mean number of smiles during a five-minute inter-view. The 30 males' mean was 3.62 and the 24 females' mean was 5.04. An α\alphaα level of .05 was adopted and an F = 4.02 was obtained. What conclusion is appropriate?

Which symbol below will most quickly tell you the number of levels of the independent variable?

The assumptions of analysis of variance are more numerous than those for the independent samples t test.

When the null hypothesis is true, which of the following is a good estimate of the population variance?

Data Set 11-4: The baseline of each curve represents scores on the dependent variable (just like the curves in the book). -Refer to Data Set 11-4. The null hypothesis is true in Experiment

For a one way ANOVA, which of the following is a medium effect size index, d?

Introduction

Exploring Data: Frequency Distributions and Graphs

Exploring Data: Central Tendency

Exploring Data: Variability

Other Descriptive Statistics

Correlation and Regression

Theoretical Distributions Including the Normal Distribution

Samples, Sampling Distributions, and Confidence Intervals

Hypothesis Testing and Effect Size: One-Sample Designs

Hypothesis Testing, Effect Size, and and Confidence Intervals: Two-Sample Designs

Analysis of Variance: One-Factor Repeated Measures

Analysis of Variance: Factorial Design

Chi Square Tests

More Nonparametric Tests

Appendix: Grouped Frequency Distributions and Central Tendency

Filters

df_error =

The tabled F_.05value for an experiment comparing males and females, an experiment in whichdf_error = 20, is

Suppose you found a way to redo a study so that the SS_erro_rwas reduced compared to the first time you ran the experiment. The SS_treatstayed the same as before. The effect of this will be to

Males and females were compared for the mean number of smiles during a five-minute inter-view. The 30 males' mean was 3.62 and the 24 females' mean was 5.04. An $\alpha$ level of .05 was adopted and an F = 4.02 was obtained. What conclusion is appropriate?