Question 1

If the null hypothesis is not 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 2

Data were gathered comparing four recipes for whole wheat bread. (The dependent variable was a scaled judgment by a trained taster.) Ten judgments were made on each recipe. An F = 2.90 was obtained. Which conclusion is proper?

Accepted Answer

A)  reject H0 at the .05 level 
B)  reject H0 at the .01 level 
C)  not enough information is given 
D)  none of the descriptive alternatives are correct. 
A)  reject H0 at the .05 level 
B)  reject H0 at the .01 level 
C)  not enough information is given 
D)  none of the descriptive alternatives are correct.

Question 3

Analysis of variance is a null hypothesis statistical testing technique.

Accepted Answer

A) True 
 B)False

Question 4

Data Set 11-2: The baseline of each curve represents scores on the dependent variable (just like the curves in the book).
  
-Refer to Data Set 11-2. The denominator of the F ratio would be largest for an ANOVA onExperiment

Accepted Answer

A)  X 
B)  Y 
C)  Z 
A)  X 
B)  Y 
C)  Z

Question 5

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

Accepted Answer

A)  4 28 
B)  3 28 
C)  3 21 
D)  4 21. 
A)  4 28 
B)  3 28 
C)  3 21 
D)  4 21.

Question 6

To compare two means from a three-group data set, use three t tests.

Accepted Answer

A) True 
 B)False

Question 7

For the probability figures in Table F to be accurate, the populations that the samples are drawn from should have

Accepted Answer

A)  equal variances 
B)  equal means 
C)  equal N's 
D)  all of the descriptive alternatives are correct. 
A)  equal variances 
B)  equal means 
C)  equal N's 
D)  all of the descriptive alternatives are correct.

Question 8

dftreat =

Accepted Answer

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

Question 9

Random assignment of participants to conditions

Accepted Answer

A)  produces variances that are about equal 
B)  produces distributions that are about normal 
C)  distributes the effect of extraneous variables equally 
D)  all of the descriptive alternatives are correct. 
A)  produces variances that are about equal 
B)  produces distributions that are about normal 
C)  distributes the effect of extraneous variables equally 
D)  all of the descriptive alternatives are correct.

Question 10

Which of the following F values would lead to rejection of the null hypothesis if $\alpha$ = .01?

Accepted Answer

A)  F = 18.50, df = 2,2 
B)  F = 2.55, df = 10,17 
C)  F = 3.05, df = 12,23 
D)  F = 2.41, df = 20,42 
E)  none of the descriptive alternatives are correct. 
A)  F = 18.50, df = 2,2 
B)  F = 2.55, df = 10,17 
C)  F = 3.05, df = 12,23 
D)  F = 2.41, df = 20,42 
E)  none of the descriptive alternatives are correct.

Question 11

a priori tests are to post hoc tests as

Accepted Answer

A)  a significant F is to an insignificant F 
B)  an insignificant F is to a significant F 
C)  spur of the moment is to premeditated 
D)  premeditated is to spur of the moment. 
A)  a significant F is to an insignificant F 
B)  an insignificant F is to a significant F 
C)  spur of the moment is to premeditated 
D)  premeditated is to spur of the moment.

Question 12

In a one-way ANOVA, the total variability is divided into four portions.

Accepted Answer

A) True 
 B)False

Question 13

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 3a: $$\begin{array} { c c c } 
\text { Group 1 } \left( 10 ^ { \circ } \right) & \text { Group 2 } \left( 20 ^ { \circ } \right) & \text { Group } 3 \left( 30 ^ { \circ } \right) \
\hline 12 & 14 & 17 \
11 & 12 & 16 \
11 & 11 & 14 \
10 & 11 & 14 \
8 & 10 & 13 \
7 & 10 & 12 \
6 & 9 & 12 \
4 & 7 & 10 \
4 & 7 & 9 \
3 & 6 & 9
\end{array}$$

Accepted Answer

Rats that had to climb the 30° plane had

Question 14

Data Set 11-8: $$\begin{array} { c c c } 
\text { Group A } & \text { Group B } & \text { Group C } \
\hline 8 & 5 & 1 \
10 & 10 & 10 \
12 & 15 & 19
\end{array}$$
-Consider the three components of the error variance in Data Set 11-8.

Accepted Answer

A)  They are about equal 
B)  They are not equal 
C)  Two are equal and one is different 
D)  Not enough information is given. 
A)  They are about equal 
B)  They are not equal 
C)  Two are equal and one is different 
D)  Not enough information is given.

Question 15

Data Set 11-2: The baseline of each curve represents scores on the dependent variable (just like the curves in the book).
  
-Refer to Data Set 11-2. The null hypothesis is true in Experiment

Accepted Answer

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

Question 16

The tabled F.05 value for a 3-group experiment, in which the df for MSerror is 14, is

Accepted Answer

A)  3.34 
B)  6.51 
C)  19.42 
D)  3.74 
A)  3.34 
B)  6.51 
C)  19.42 
D)  3.74

Question 17

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

Accepted Answer

A)  0.05 
B)  0.50 
C)  0.80 
D)  all of the other alternatives are correct 
E)  none of the other alternatives are correct 
A)  0.05 
B)  0.50 
C)  0.80 
D)  all of the other alternatives are correct 
E)  none of the other alternatives are correct

Question 18

The person who developed analysis of variance as a statistical technique was

Accepted Answer

A)  Gosset 
B)  Quetelet 
C)  Tukey 
D)  none of the other alternatives are correct. 
A)  Gosset 
B)  Quetelet 
C)  Tukey 
D)  none of the other alternatives are correct.

Question 19

The person responsible for developing analysis of variance was William Gosset.

Accepted Answer

A) True 
 B)False

Question 20

Suppose your data analysis produced an F value of 3.22. The appropriate F value in the table was only 3.20. You should

Accepted Answer

A)  reject the null hypothesis 
B)  retain the null hypothesis 
C)  either of the descriptive alternatives are appropriate, depending on df 
D)  either of the descriptive alternatives are appropriate, depending on MStreat. 
A)  reject the null hypothesis 
B)  retain the null hypothesis 
C)  either of the descriptive alternatives are appropriate, depending on df 
D)  either of the descriptive alternatives are appropriate, depending on MStreat.

If the null hypothesis is not true, mean square______________ will be a good estimate of the population variance.

Data were gathered comparing four recipes for whole wheat bread. (The dependent variable was a scaled judgment by a trained taster.) Ten judgments were made on each recipe. An F = 2.90 was obtained. Which conclusion is proper?

Analysis of variance is a null hypothesis statistical testing technique.

Data Set 11-2: The baseline of each curve represents scores on the dependent variable (just like the curves in the book). -Refer to Data Set 11-2. The denominator of the F ratio would be largest for an ANOVA onExperiment

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

To compare two means from a three-group data set, use three t tests.

For the probability figures in Table F to be accurate, the populations that the samples are drawn from should have

df_treat =

Random assignment of participants to conditions

Which of the following F values would lead to rejection of the null hypothesis if $\alpha$ = .01?

a priori tests are to post hoc tests as

In a one-way ANOVA, the total variability is divided into four portions.

Data Set 11-8: Group A Group B Group C 8 5 1 10 10 10 12 15 19 -Consider the three components of the error variance in Data Set 11-8.

Data Set 11-2: The baseline of each curve represents scores on the dependent variable (just like the curves in the book). -Refer to Data Set 11-2. The null hypothesis is true in Experiment

The tabled F_.₀₅value for a 3-group experiment, in which the df for MS_error is 14, is

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

The person who developed analysis of variance as a statistical technique was

The person responsible for developing analysis of variance was William Gosset.

Suppose your data analysis produced an F value of 3.22. The appropriate F value in the table was only 3.20. You should

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 null hypothesis is not true, mean square______________ will be a good estimate of the population variance.

Data were gathered comparing four recipes for whole wheat bread. (The dependent variable was a scaled judgment by a trained taster.) Ten judgments were made on each recipe. An F = 2.90 was obtained. Which conclusion is proper?

Analysis of variance is a null hypothesis statistical testing technique.

Data Set 11-2: The baseline of each curve represents scores on the dependent variable (just like the curves in the book). -Refer to Data Set 11-2. The denominator of the F ratio would be largest for an ANOVA onExperiment

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

To compare two means from a three-group data set, use three t tests.

For the probability figures in Table F to be accurate, the populations that the samples are drawn from should have

dftreat =

Random assignment of participants to conditions

Which of the following F values would lead to rejection of the null hypothesis if α\alphaα = .01?

a priori tests are to post hoc tests as

In a one-way ANOVA, the total variability is divided into four portions.

Data Set 11-8: Group A Group B Group C 8 5 1 10 10 10 12 15 19 -Consider the three components of the error variance in Data Set 11-8.

Data Set 11-2: The baseline of each curve represents scores on the dependent variable (just like the curves in the book). -Refer to Data Set 11-2. The null hypothesis is true in Experiment

The tabled F.05 value for a 3-group experiment, in which the df for MSerror is 14, is

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

The person who developed analysis of variance as a statistical technique was

The person responsible for developing analysis of variance was William Gosset.

Suppose your data analysis produced an F value of 3.22. The appropriate F value in the table was only 3.20. You should

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_treat =

Which of the following F values would lead to rejection of the null hypothesis if $\alpha$ = .01?

The tabled F_.₀₅value for a 3-group experiment, in which the df for MS_error is 14, is