Question 1

The denominator of the formula for eta-squared is    for both main effects and the interaction.

Accepted Answer

A) True 
 B)False

Question 2

Computing a two-way between-subjects ANOVA is appropriate when

Accepted Answer

A) different participants are assigned to each group or cell 
B) the same participants are observed across groups or cells 
C) the levels of two or more factors are manipulated 
D) both A and C 
A) different participants are assigned to each group or cell 
B) the same participants are observed across groups or cells 
C) the levels of two or more factors are manipulated 
D) both A and C

Question 3

Which of the following describes a research design in which one factor could be a between-subjects factor,and the second factor could be a within-subjects factor?

Accepted Answer

A) the effects of ones' sex (male,female)and season of birth on rates of schizophrenia 
B) the effects of ones' socioeconomic status and education level on their overall life satisfaction 
C) the effects of ones' income level on their resiliency in the face of each of three cognitively-challenging tasks 
D) the effects of ones' handedness (right,left)and class year (freshman to senior)on their intelligence scores. 
A) the effects of ones' sex (male,female)and season of birth on rates of schizophrenia 
B) the effects of ones' socioeconomic status and education level on their overall life satisfaction 
C) the effects of ones' income level on their resiliency in the face of each of three cognitively-challenging tasks 
D) the effects of ones' handedness (right,left)and class year (freshman to senior)on their intelligence scores.

Question 4

A professor compares the exam grades of students based on whether they have a learning disability (yes,no)and where they sit in the classroom (in the front,middle,or back row).Different participants were observed in each group.What type of statistical design is appropriate for this study?

Accepted Answer

A) one-way between-subjects ANOVA 
B) one-way within-subjects ANOVA 
C) two-way between-subjects ANOVA 
D) both B and C 
A) one-way between-subjects ANOVA 
B) one-way within-subjects ANOVA 
C) two-way between-subjects ANOVA 
D) both B and C

Question 5

A researcher computes a 2 $\times$ 3 between-subjects ANOVA in which 6 participants are observed in each cell.What are the degrees of freedom error for this study?

Accepted Answer

A) 71 
B) 60 
C) 30 
D) 36 
A) 71 
B) 60 
C) 30 
D) 36

Question 6

A researcher computes a 4 $\times$ 4 between-subjects ANOVA and finds two significant main effects and a significant interaction.What is the next appropriate step?

Accepted Answer

A) Compute pairwise comparisons for each main effect. 
B) Compute simple main effect tests for each main effect. 
C) Compute pairwise comparisons for the interaction. 
D) Compute simple main effect tests for the interaction. 
A) Compute pairwise comparisons for each main effect. 
B) Compute simple main effect tests for each main effect. 
C) Compute pairwise comparisons for the interaction. 
D) Compute simple main effect tests for the interaction.

Question 7

The complexity of the two-way ANOVA differs from that of the t tests and the one-way ANOVAs in that,

Accepted Answer

A) two factors can be observed using the two-way ANOVA,but not using the t tests and the one-way ANOVAs. 
B) an interaction can be observed using the two-way ANOVA,but not using the t tests and the one-way ANOVAs. 
C) three hypothesis are made with one statistical test using the two-way ANOVA,but not using the t tests and the one-way ANOVAs. 
D) all of the above 
A) two factors can be observed using the two-way ANOVA,but not using the t tests and the one-way ANOVAs. 
B) an interaction can be observed using the two-way ANOVA,but not using the t tests and the one-way ANOVAs. 
C) three hypothesis are made with one statistical test using the two-way ANOVA,but not using the t tests and the one-way ANOVAs. 
D) all of the above

Question 8

Using the two-way mixed ANOVA,different participants are observed at each level of the between-subjects factor,and the same participants are observed across the levels of the within-subjects factor.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following correctly identifies each source of variation in the two-way between-subjects ANOVA?

Accepted Answer

A) two between-groups,one within-groups,and error 
B) two within-groups,one between-groups,and error 
C) two interactions,one main effect,and error 
D) two main effects,one interaction,and error 
A) two between-groups,one within-groups,and error 
B) two within-groups,one between-groups,and error 
C) two interactions,one main effect,and error 
D) two main effects,one interaction,and error

Question 10

To summarize any type of two-way ANOVA using APA format,we report each of the following except the,

Accepted Answer

A) test statistic 
B) critical values 
C) p value 
D) degrees of freedom 
A) test statistic 
B) critical values 
C) p value 
D) degrees of freedom

Question 11

A simple main effect test is appropriate for analyzing which significant result?

Accepted Answer

A) a significant main effect,where k = 2 
B) a significant main effect,where k > 2 
C) a significant interaction 
D) all of the above 
A) a significant main effect,where k = 2 
B) a significant main effect,where k > 2 
C) a significant interaction 
D) all of the above

Question 12

The statistical procedure used to analyze the simple main effects of an interaction is called

Accepted Answer

A) a simple main effect test 
B) a pairwise comparison 
C) the proportion of variance 
D) estimated Cohen's d 
A) a simple main effect test 
B) a pairwise comparison 
C) the proportion of variance 
D) estimated Cohen's d

Question 13

Eta-squared is a more powerful estimate of effect size than R2.

Accepted Answer

A) True 
 B)False

Question 14

A researcher has participants complete a survey regarding their level of restraint when eating.Participants were assigned to groups based on their current health status (lean,overweight,obese)and gender (male,female).What type of factorial design is most appropriate for this study?

Accepted Answer

A) a 1-between,1-within factorial design 
B) a between-subjects factorial design 
C) a within-subjects factorial design 
D) None;this is not a factorial design. 
A) a 1-between,1-within factorial design 
B) a between-subjects factorial design 
C) a within-subjects factorial design 
D) None;this is not a factorial design.

Question 15

A researcher computes a 3 $\times$ 4 between-subjects ANOVA.What are the degrees of freedom for Factor A for this study?

Accepted Answer

A) 2 
B) 3 
C) 6 
D) 12 
A) 2 
B) 3 
C) 6 
D) 12

Question 16

If a study has 12 groups,then it is possible that the degrees of freedom for each factor are 3 and 4 degrees of freedom for a two-way between-subjects ANOVA.

Accepted Answer

A) True 
 B)False

Question 17

The following is a summary of a significant interaction for a two-way ANOVA: F(2,30)= 2.04,p < .05 (   = .15).What of the following must be incorrect in this report?

Accepted Answer

A) the effect size 
B) the degrees of freedom 
C) the p value 
D) the test statistic 
A) the effect size 
B) the degrees of freedom 
C) the p value 
D) the test statistic

Question 18

Using a two-way between-subjects ANOVA,we compute hypothesis tests for two main effects and one interaction.

Accepted Answer

A) True 
 B)False

Question 19

A researcher records the amount of time spent studying by male and female college students in a dormitory versus a library setting.Different participants were observed in each group.What type of statistical design is appropriate for this study?

Accepted Answer

A) one-way between-subjects ANOVA 
B) one-way within-subjects ANOVA 
C) two-way between-subjects ANOVA 
D) both B and C 
A) one-way between-subjects ANOVA 
B) one-way within-subjects ANOVA 
C) two-way between-subjects ANOVA 
D) both B and C

Question 20

The means and standard error or standard deviations measured in a study can be summarized in,

Accepted Answer

A) a figure 
B) a table 
C) the main text of a report 
D) all of the above 
A) a figure 
B) a table 
C) the main text of a report 
D) all of the above

The denominator of the formula for eta-squared is for both main effects and the interaction.

Computing a two-way between-subjects ANOVA is appropriate when

Which of the following describes a research design in which one factor could be a between-subjects factor,and the second factor could be a within-subjects factor?

A professor compares the exam grades of students based on whether they have a learning disability (yes,no)and where they sit in the classroom (in the front,middle,or back row).Different participants were observed in each group.What type of statistical design is appropriate for this study?

A researcher computes a 2 $\times$ 3 between-subjects ANOVA in which 6 participants are observed in each cell.What are the degrees of freedom error for this study?

A researcher computes a 4 $\times$ 4 between-subjects ANOVA and finds two significant main effects and a significant interaction.What is the next appropriate step?

The complexity of the two-way ANOVA differs from that of the t tests and the one-way ANOVAs in that,

Using the two-way mixed ANOVA,different participants are observed at each level of the between-subjects factor,and the same participants are observed across the levels of the within-subjects factor.

Which of the following correctly identifies each source of variation in the two-way between-subjects ANOVA?

To summarize any type of two-way ANOVA using APA format,we report each of the following except the,

A simple main effect test is appropriate for analyzing which significant result?

The statistical procedure used to analyze the simple main effects of an interaction is called

Eta-squared is a more powerful estimate of effect size than R².

A researcher has participants complete a survey regarding their level of restraint when eating.Participants were assigned to groups based on their current health status (lean,overweight,obese)and gender (male,female).What type of factorial design is most appropriate for this study?

A researcher computes a 3 $\times$ 4 between-subjects ANOVA.What are the degrees of freedom for Factor A for this study?

If a study has 12 groups,then it is possible that the degrees of freedom for each factor are 3 and 4 degrees of freedom for a two-way between-subjects ANOVA.

The following is a summary of a significant interaction for a two-way ANOVA: F(2,30)= 2.04,p < .05 ( = .15).What of the following must be incorrect in this report?

Using a two-way between-subjects ANOVA,we compute hypothesis tests for two main effects and one interaction.

A researcher records the amount of time spent studying by male and female college students in a dormitory versus a library setting.Different participants were observed in each group.What type of statistical design is appropriate for this study?

The means and standard error or standard deviations measured in a study can be summarized in,

Introduction to Statistics

Summarizing Data: Frequency Distributions in Tables and Graphs

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability

Probability, Normal Distributions, and Z Scores

Probability and Sampling Distributions

Hypothesis Testing: Significance, Effect Size, and Power

Testing Means: One-Sample and Two-Independent Sample T Tests

Testing Means: Related Samples T Test

Estimation and Confidence Intervals

Analysis of Variance: One-Way Between-Subjects Design

Analysis of Variance: One-Way Within-Subjects Repeated Measures Design

Correlation

Linear Regression and Multiple Regression

Nonparametric Tests: Chi-Square Tests

Nonparametric Tests: Tests for Ordinal Data

Filters

Exam 14: Analysis of Variance: Two-Way Between-Subjects Factorial Design

The denominator of the formula for eta-squared is for both main effects and the interaction.

Computing a two-way between-subjects ANOVA is appropriate when

Which of the following describes a research design in which one factor could be a between-subjects factor,and the second factor could be a within-subjects factor?

A professor compares the exam grades of students based on whether they have a learning disability (yes,no)and where they sit in the classroom (in the front,middle,or back row).Different participants were observed in each group.What type of statistical design is appropriate for this study?

A researcher computes a 2 ×\times× 3 between-subjects ANOVA in which 6 participants are observed in each cell.What are the degrees of freedom error for this study?

A researcher computes a 4 ×\times× 4 between-subjects ANOVA and finds two significant main effects and a significant interaction.What is the next appropriate step?

The complexity of the two-way ANOVA differs from that of the t tests and the one-way ANOVAs in that,

Using the two-way mixed ANOVA,different participants are observed at each level of the between-subjects factor,and the same participants are observed across the levels of the within-subjects factor.

Which of the following correctly identifies each source of variation in the two-way between-subjects ANOVA?

To summarize any type of two-way ANOVA using APA format,we report each of the following except the,

A simple main effect test is appropriate for analyzing which significant result?

The statistical procedure used to analyze the simple main effects of an interaction is called

Eta-squared is a more powerful estimate of effect size than R2.

A researcher has participants complete a survey regarding their level of restraint when eating.Participants were assigned to groups based on their current health status (lean,overweight,obese)and gender (male,female).What type of factorial design is most appropriate for this study?

A researcher computes a 3 ×\times× 4 between-subjects ANOVA.What are the degrees of freedom for Factor A for this study?

If a study has 12 groups,then it is possible that the degrees of freedom for each factor are 3 and 4 degrees of freedom for a two-way between-subjects ANOVA.

The following is a summary of a significant interaction for a two-way ANOVA: F(2,30)= 2.04,p < .05 ( = .15).What of the following must be incorrect in this report?

Using a two-way between-subjects ANOVA,we compute hypothesis tests for two main effects and one interaction.

A researcher records the amount of time spent studying by male and female college students in a dormitory versus a library setting.Different participants were observed in each group.What type of statistical design is appropriate for this study?

The means and standard error or standard deviations measured in a study can be summarized in,

Introduction to Statistics

Summarizing Data: Frequency Distributions in Tables and Graphs

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability

Probability, Normal Distributions, and Z Scores

Probability and Sampling Distributions

Hypothesis Testing: Significance, Effect Size, and Power

Testing Means: One-Sample and Two-Independent Sample T Tests

Testing Means: Related Samples T Test

Estimation and Confidence Intervals

Analysis of Variance: One-Way Between-Subjects Design

Analysis of Variance: One-Way Within-Subjects Repeated Measures Design

Correlation

Linear Regression and Multiple Regression

Nonparametric Tests: Chi-Square Tests

Nonparametric Tests: Tests for Ordinal Data

Filters

A researcher computes a 2 $\times$ 3 between-subjects ANOVA in which 6 participants are observed in each cell.What are the degrees of freedom error for this study?

A researcher computes a 4 $\times$ 4 between-subjects ANOVA and finds two significant main effects and a significant interaction.What is the next appropriate step?

Eta-squared is a more powerful estimate of effect size than R².

A researcher computes a 3 $\times$ 4 between-subjects ANOVA.What are the degrees of freedom for Factor A for this study?