Question 1

If the F value obtained from the table is larger than the F value obtained from the data, you should

Accepted Answer

A)  reject the null hypothesis 
B)  retain the null hypothesis 
C)  either of the descriptive alternatives, depending on the size of the obtained F 
D)  either of the descriptive alternatives, depending on the df. 
A)  reject the null hypothesis 
B)  retain the null hypothesis 
C)  either of the descriptive alternatives, depending on the size of the obtained F 
D)  either of the descriptive alternatives, depending on the df.

Question 2

The effect size index, f, is appropriate for one-way ANOVA data.

Accepted Answer

A) True 
 B)False

Question 3

If the F value obtained from the data is .001 and df = 2,25, you should

Accepted Answer

A)  reject the null hypothesis 
B)  retain the null hypothesis 
C)  rework the problem such a value is impossible. 
A)  reject the null hypothesis 
B)  retain the null hypothesis 
C)  rework the problem such a value is impossible.

Question 4

For a one-way ANOVA, an effect size index (f) that is considered large is

Accepted Answer

A)  0.50 
B)  1.00 
C)  1.50 
D)  all of the descriptive alternatives are correct 
E)  none of the descriptive alternatives are correct. 
A)  0.50 
B)  1.00 
C)  1.50 
D)  all of the descriptive alternatives are correct 
E)  none of the descriptive alternatives are correct.

Question 5

Ronald A. Fisher gets credit for developing

Accepted Answer

A)  analysis of variance 
B)  the t distribution 
C)  both of the descriptive alternatives are correct 
D)  neither of the descriptive alternatives is correct 
A)  analysis of variance 
B)  the t distribution 
C)  both of the descriptive alternatives are correct 
D)  neither of the descriptive alternatives is correct

Question 6

If the null hypothesis is true, an analysis of variance determines the probability that the samples

Accepted Answer

A)  came from the same population 
B)  came from different populations 
C)  came from an F distribution 
D)  are random samples. 
A)  came from the same population 
B)  came from different populations 
C)  came from an F distribution 
D)  are random samples.

Question 7

When the null hypothesis is false, 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 8

For a one-way ANOVA, an effect size index (f) that qualifies as small is

Accepted Answer

A)  0.05 
B)  0.25 
C)  both of the descriptive alternatives are correct 
D)  neither of the descriptive alternatives is correct. 
A)  0.05 
B)  0.25 
C)  both of the descriptive alternatives are correct 
D)  neither of the descriptive alternatives is correct.

Question 9

Credit for the development of ANOVA goes to

Accepted Answer

A)  Francis Galton, a geneticist 
B)  Karl Pearson, a statistician 
C)  Ronald Fisher, a biologist 
D)  George Snedecor, a psychologist. 
A)  Francis Galton, a geneticist 
B)  Karl Pearson, a statistician 
C)  Ronald Fisher, a biologist 
D)  George Snedecor, a psychologist.

Question 10

Cause and effect statements between the independent and dependent variable are strongest when

Accepted Answer

A)  the distributions of the dependent variable are normal 
B)  participants have been assigned randomly to conditions 
C)  the distributions of the dependent variable have equal variances 
D)  there are three or more levels of the independent variable. 
A)  the distributions of the dependent variable are normal 
B)  participants have been assigned randomly to conditions 
C)  the distributions of the dependent variable have equal variances 
D)  there are three or more levels of the independent variable.

Question 11

A group of 50 participants was divided equally into 5 groups. A Tukey HSD produced a value that led to the conclusion that Mean 1 was significantly larger than Mean 2, p < .05. Which of the following situations would lead to such a conclusion?

Accepted Answer

A)  $\bar { X } _ { 1 } = 13 , \bar { X } _ { 2 } = 5 , M S _ { \text {error } } = 36$ 
B)  $\bar { X } _ { 1 } = 54 , \bar { X } _ { 2 } = 36 , M S _ { \text {error } } = 240$ 
C)  $\bar { X } _ { 1 } = 5 \bar { X } _ { 2 } = 2 , M S _ { \text {error } } = 40$ 
D)  none of the other alternatives are correct. 
A)  $\bar { X } _ { 1 } = 13 , \bar { X } _ { 2 } = 5 , M S _ { \text {error } } = 36$ 
B)  $\bar { X } _ { 1 } = 54 , \bar { X } _ { 2 } = 36 , M S _ { \text {error } } = 240$ 
C)  $\bar { X } _ { 1 } = 5 \bar { X } _ { 2 } = 2 , M S _ { \text {error } } = 40$ 
D)  none of the other alternatives are correct.

Question 12

A priori tests are those that are planned before an ANOVA is calculated.

Accepted Answer

A) True 
 B)False

Question 13

Suppose MStreat is calculated for three samples that are from a population with a mean = 10. Under which condition below would MStreat certainly become larger?

Accepted Answer

A)  the addition of a sample from a population with the a mean of 10 
B)  the addition of a sample from a population with a mean = 20 
C)  the removal of one of the three samples from the calculations 
D)  all of the other alternatives are correct. 
A)  the addition of a sample from a population with the a mean of 10 
B)  the addition of a sample from a population with a mean = 20 
C)  the removal of one of the three samples from the calculations 
D)  all of the other alternatives are correct.

Question 14

In order to determine the effect of school size on subsequent academic performance, 20 graduating seniors who had gone on to college were chosen from each of four high schools that had graduating classes of 50, 250, 500, and 2000. Mean college grade points were calculated for each high school, $\alpha$ was set at .05, and an ANOVA was run, producing an F = 2.75. From this you can conclude that

Accepted Answer

A)  H0 should be rejected 
B)  H0 should be retained 
C)  more information is needed in order to decide about the null hypothesis, namely . 
A)  H0 should be rejected 
B)  H0 should be retained 
C)  more information is needed in order to decide about the null hypothesis, namely .

Question 15

If an ANOVA led to the statement, "p < .05"you can be sure that the data produced an F ratio that is greater than

Accepted Answer

A)  1.00 
B)  the tabled value for F at the .05 level 
C)  both of the descriptive alternatives are correct 
D)  neither of the descriptive alternatives is correct. 
A)  1.00 
B)  the tabled value for F at the .05 level 
C)  both of the descriptive alternatives are correct 
D)  neither of the descriptive alternatives is correct.

Question 16

According to the study in your text, the greatest degree of persistence would occur after training on a __________________ schedule.

Accepted Answer

A)  continuous reinforcement 
B)  fixed-ratio 2 
C)  fixed-ratio 4 
D)  fixed-ratio 8. 
A)  continuous reinforcement 
B)  fixed-ratio 2 
C)  fixed-ratio 4 
D)  fixed-ratio 8.

Question 17

For a one-way ANOVA, an effect size index (f) that qualifies as small is

Accepted Answer

A)  less than 0 
B)  0.10 
C)  1.00 
D)  all of the descriptive alternatives are correct. 
A)  less than 0 
B)  0.10 
C)  1.00 
D)  all of the descriptive alternatives are correct.

Question 18

The mean square error will be a good estimate of the population variance when

Accepted Answer

A)  when the null hypothesis is true 
B)  when the null hypothesis is false 
C)  regardless of whether the null hypothesis is true or false 
A)  when the null hypothesis is true 
B)  when the null hypothesis is false 
C)  regardless of whether the null hypothesis is true or false

Question 19

The amount of difference that exists among the populations with unknown means (which you have sampled from) is the issue of

Accepted Answer

A)  hypothesis testing or confidence intervals 
B)  assumptions of ANOVA 
C)  .05 or .01 $\alpha$ level 
D)  effect size. 
A)  hypothesis testing or confidence intervals 
B)  assumptions of ANOVA 
C)  .05 or .01 $\alpha$ level 
D)  effect size.

Question 20

The following hypothetical data are scores on a test that measures a person's attitudes toward fate. (An example of such a test is Rotter's internal-external scale.) A high score indicates that the person views fate as being out of his or her control. Low scores indicate that he or she feels directly responsible for what happens. Calculate an ANOVA and test for differences among the three social classes. Calculate f. Calculate a HSD and a d value for the two samples with the most different attitude toward fate. Write a verbal description of what your analyses show. $$\begin{array} { c c c } 
\text { Lower Class } & \text { Middle Class } & \text { Upper Class } \
\hline 12 & 13 & 6 \
10 & 4 & 5 \
11 & 9 & 8 \
9 & 6 & 2 \
7 & 12 & 2 \
3 & 10 & 1
\end{array}$$ Fill in: Independent variable: ____________Dependent variable: __________

Accepted Answer

Independent variable: social class
Depen

If the F value obtained from the table is larger than the F value obtained from the data, you should

The effect size index, f, is appropriate for one-way ANOVA data.

If the F value obtained from the data is .001 and df = 2,25, you should

For a one-way ANOVA, an effect size index (f) that is considered large is

Ronald A. Fisher gets credit for developing

If the null hypothesis is true, an analysis of variance determines the probability that the samples

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

For a one-way ANOVA, an effect size index (f) that qualifies as small is

Credit for the development of ANOVA goes to

Cause and effect statements between the independent and dependent variable are strongest when

A group of 50 participants was divided equally into 5 groups. A Tukey HSD produced a value that led to the conclusion that Mean 1 was significantly larger than Mean 2, p < .05. Which of the following situations would lead to such a conclusion?

A priori tests are those that are planned before an ANOVA is calculated.

Suppose MS_treatis calculated for three samples that are from a population with a mean = 10. Under which condition below would MS_treatcertainly become larger?

If an ANOVA led to the statement, "p < .05"you can be sure that the data produced an F ratio that is greater than

According to the study in your text, the greatest degree of persistence would occur after training on a __________________ schedule.

For a one-way ANOVA, an effect size index (f) that qualifies as small is

The mean square error will be a good estimate of the population variance when

The amount of difference that exists among the populations with unknown means (which you have sampled from) is the issue of

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

If the F value obtained from the table is larger than the F value obtained from the data, you should

The effect size index, f, is appropriate for one-way ANOVA data.

If the F value obtained from the data is .001 and df = 2,25, you should

For a one-way ANOVA, an effect size index (f) that is considered large is

Ronald A. Fisher gets credit for developing

If the null hypothesis is true, an analysis of variance determines the probability that the samples

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

For a one-way ANOVA, an effect size index (f) that qualifies as small is

Credit for the development of ANOVA goes to

Cause and effect statements between the independent and dependent variable are strongest when

A group of 50 participants was divided equally into 5 groups. A Tukey HSD produced a value that led to the conclusion that Mean 1 was significantly larger than Mean 2, p < .05. Which of the following situations would lead to such a conclusion?

A priori tests are those that are planned before an ANOVA is calculated.

Suppose MStreat is calculated for three samples that are from a population with a mean = 10. Under which condition below would MStreat certainly become larger?

If an ANOVA led to the statement, "p < .05"you can be sure that the data produced an F ratio that is greater than

According to the study in your text, the greatest degree of persistence would occur after training on a __________________ schedule.

For a one-way ANOVA, an effect size index (f) that qualifies as small is

The mean square error will be a good estimate of the population variance when

The amount of difference that exists among the populations with unknown means (which you have sampled from) is the issue of

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

Suppose MS_treatis calculated for three samples that are from a population with a mean = 10. Under which condition below would MS_treatcertainly become larger?