Question 1

The null hypothesis of an analysis of variance is that the __________ means are equal.

Accepted Answer

The answer of The null hypothesis of an analysis of...

Question 2

Advanced topic: The sum of the squared deviations of each score from the mean of its group plus the sum of the squared deviations of each score's group's mean from the grand mean equals A)the grand mean divided by df_Total. B)the portion of the grand mean's deviation accounted for by the score itself. C)the portion of the grand mean's deviation accounted for by the score's group. D)the sum of squared deviations of each score from the grand mean.

Accepted Answer

This is known as the total sum of squares (TSS) formula, which represents the total variance in the data. Specifically, it is the sum of the squared deviations of each score from the grand mean, indicating how much each individual score varies from the overall average.

Question 3

In a one-way analysis of variance,when sample sizes are equal,"(S²_M)(n)" is the formula for __________.(Do not give a symbol.)

Accepted Answer

The answer of In a one-way analysis of variance,when sample...

Question 4

An experimenter "fishing for results" once a study is completed is conducting __________.

Accepted Answer

The answer of An experimenter "fishing for results" once a...

Question 5

The F ratio was invented by __________.

Accepted Answer

The answer of The F ratio was invented by __________....

Question 6

In an analysis of variance,if the null hypothesis is false,then the __________- groups estimate of the population variance is larger than if the null hypothesis were true.

Accepted Answer

The answer of In an analysis of variance,if the null...

Question 7

A planned comparison involving more than two means,such as the average of two groups versus a third,is called a(n)__________ comparison.

Accepted Answer

The answer of A planned comparison involving more than two...

Question 8

In an analysis of variance,if the null hypothesis is false,then the __________- groups estimate of the population variance is much smaller than the __________- groups estimate.

Accepted Answer

The answer of In an analysis of variance,if the null...

Question 9

In a planned comparison of two particular means,a between-groups population variance estimate,based on the two groups being compared,is divided by a within-groups population variance estimate,based on __________.

Accepted Answer

The answer of In a planned comparison of two particular...

Question 10

If a researcher conducted six t tests,each at the .05 significance level,the chance that at least one test would reach significance would be about __________,even if the null hypothesis were true.(Give a number.)

Accepted Answer

The answer of If a researcher conducted six t tests,each...

Question 11

The between-groups population variance estimate divided by the within-groups population variance estimate is called __________.

Accepted Answer

The answer of The between-groups population variance estimate divided by...

Question 12

The method used to make planned comparisons that involves dividing the total significance level by the number of comparisons to be made is the __________.

Accepted Answer

The answer of The method used to make planned comparisons...

Question 13

In a one-way analysis of variance,"(S²₁ + S²₂ + … + S²_last)/ N_groups" is the formula for __________.(Do not give a symbol.)

Accepted Answer

The answer of In a one-way analysis of variance,"(S²₁ +...

Question 14

Advanced topic: Σ(X-GM)² A)equals the sum of squared deviations of scores from their group's mean. B)ignores the group a score is in. C)is always smaller than Σ(X-M)². D)is used to determine the grand mean.

Accepted Answer

The expression Σ(X-GM)² represents the sum of squared deviations of scores from the grand mean (GM), not taking into account the group a score is in.

Question 15

When conducting an analysis of variance,one assumption is that each population distribution is __________.

Accepted Answer

The answer of When conducting an analysis of variance,one assumption...

Question 16

Advanced topic: Each score's deviation from the grand mean represents
A)true variation.
B)measurement error.
C)both true variation and measurement error.
D)neither true variation nor measurement error.

Accepted Answer

Each score's deviation from the grand mean represents both true variation and measurement error. True variation reflects actual differences among the scores, while measurement error accounts for inaccuracies in the measurement process.

Question 17

Advanced topic: If you were to use a "signal-noise" analogy to explain the structural model,you could say that "signal" represents
A)the between-groups population variance estimate.
B)the within-groups population variance estimate.
C)the total population variance estimate.
D)degrees of freedom.

Accepted Answer

The "signal" in a "signal-noise" analogy, when discussing the structural model, represents the between-groups population variance estimate. This is because the "signal" refers to the variance or differences that are due to the actual treatment or factor being studied, which is what the between-groups variance measures.

Question 18

A priori comparisons are also known as __________.

Accepted Answer

The answer of A priori comparisons are also known as...

Question 19

Advanced topic: In an analysis of variance table,which of the following can be used to refer to "within-groups"?
A)treatment
B)model
C)group
D)error

Accepted Answer

"Within-groups" refers to the variability within each group or treatment, which is the error term in an analysis of variance table. Therefore, D is the correct choice as "error" represents the variability within each group or treatment. A, B, and C do not directly relate to within-groups.

Question 20

Conducting an analysis of variance involves comparing __________ different estimates of the population variance.(Give a number.)

Accepted Answer

The answer of Conducting an analysis of variance involves comparing...

Quiz 9: Introduction to the Analysis of Variance

The null hypothesis of an analysis of variance is that the __________ means are equal.

Advanced topic: The sum of the squared deviations of each score from the mean of its group plus the sum of the squared deviations of each score's group's mean from the grand mean equals

In a one-way analysis of variance,when sample sizes are equal,"(S²_M)(n)" is the formula for __________.(Do not give a symbol.)

An experimenter "fishing for results" once a study is completed is conducting __________.

The F ratio was invented by __________.

In an analysis of variance,if the null hypothesis is false,then the __________- groups estimate of the population variance is larger than if the null hypothesis were true.

A planned comparison involving more than two means,such as the average of two groups versus a third,is called a(n)__________ comparison.

In an analysis of variance,if the null hypothesis is false,then the - groups estimate of the population variance is much smaller than the - groups estimate.

In a planned comparison of two particular means,a between-groups population variance estimate,based on the two groups being compared,is divided by a within-groups population variance estimate,based on __________.

If a researcher conducted six t tests,each at the .05 significance level,the chance that at least one test would reach significance would be about __________,even if the null hypothesis were true.(Give a number.)

The between-groups population variance estimate divided by the within-groups population variance estimate is called __________.

The method used to make planned comparisons that involves dividing the total significance level by the number of comparisons to be made is the __________.

In a one-way analysis of variance,"(S²₁ + S²₂ + … + S²_last)/ N_groups" is the formula for __________.(Do not give a symbol.)

Advanced topic: Σ(X-GM) ²

When conducting an analysis of variance,one assumption is that each population distribution is __________.

Advanced topic: Each score's deviation from the grand mean represents

Advanced topic: If you were to use a "signal-noise" analogy to explain the structural model,you could say that "signal" represents

A priori comparisons are also known as __________.

Advanced topic: In an analysis of variance table,which of the following can be used to refer to "within-groups"?

Conducting an analysis of variance involves comparing __________ different estimates of the population variance.(Give a number.)

Quiz 9: Introduction to the Analysis of Variance

The null hypothesis of an analysis of variance is that the __________ means are equal.

Advanced topic: The sum of the squared deviations of each score from the mean of its group plus the sum of the squared deviations of each score's group's mean from the grand mean equals

In a one-way analysis of variance,when sample sizes are equal,"(S2M)(n)" is the formula for __________.(Do not give a symbol.)

An experimenter "fishing for results" once a study is completed is conducting __________.

The F ratio was invented by __________.

In an analysis of variance,if the null hypothesis is false,then the __________- groups estimate of the population variance is larger than if the null hypothesis were true.

A planned comparison involving more than two means,such as the average of two groups versus a third,is called a(n)__________ comparison.

In an analysis of variance,if the null hypothesis is false,then the __________- groups estimate of the population variance is much smaller than the __________- groups estimate.

In a planned comparison of two particular means,a between-groups population variance estimate,based on the two groups being compared,is divided by a within-groups population variance estimate,based on __________.

If a researcher conducted six t tests,each at the .05 significance level,the chance that at least one test would reach significance would be about __________,even if the null hypothesis were true.(Give a number.)

The between-groups population variance estimate divided by the within-groups population variance estimate is called __________.

The method used to make planned comparisons that involves dividing the total significance level by the number of comparisons to be made is the __________.

In a one-way analysis of variance,"(S21 + S22 + … + S2last)/ Ngroups" is the formula for __________.(Do not give a symbol.)

Advanced topic: Σ(X-GM) 2

When conducting an analysis of variance,one assumption is that each population distribution is __________.

Advanced topic: Each score's deviation from the grand mean represents

Advanced topic: If you were to use a "signal-noise" analogy to explain the structural model,you could say that "signal" represents

A priori comparisons are also known as __________.

Advanced topic: In an analysis of variance table,which of the following can be used to refer to "within-groups"?

Conducting an analysis of variance involves comparing __________ different estimates of the population variance.(Give a number.)

In a one-way analysis of variance,when sample sizes are equal,"(S²_M)(n)" is the formula for __________.(Do not give a symbol.)

In an analysis of variance,if the null hypothesis is false,then the - groups estimate of the population variance is much smaller than the - groups estimate.

In a one-way analysis of variance,"(S²₁ + S²₂ + … + S²_last)/ N_groups" is the formula for __________.(Do not give a symbol.)

Advanced topic: Σ(X-GM) ²