Question 1

Analysis of covariance involves:

Accepted Answer

A)  analyzing more than one dependent variable. 
B)  analyzing the residuals in an interaction. 
C)  determining all relevant variables that are correlated with the dependent variable prior to collecting the data. 
D)  statistically controlling for a third variable that is associated with the dependent measure. 
A)  analyzing more than one dependent variable. 
B)  analyzing the residuals in an interaction. 
C)  determining all relevant variables that are correlated with the dependent variable prior to collecting the data. 
D)  statistically controlling for a third variable that is associated with the dependent measure.

Question 2

A two-way ANOVA accounts for _____ sources of variability.

Accepted Answer

A)  two 
B)  three 
C)  four 
D)  five 
A)  two 
B)  three 
C)  four 
D)  five

Question 3

Educators in Cook County want to assess the efficacy of a new reading program they put in place.Therefore, they randomly assign some schools in the county to institute the new reading program and other schools to remain on the traditional reading program.When performing the analysis to determine whether students using the new reading program perform better, the educators control for socioeconomic status, a variable known to be related to educational outcomes.What kind of analysis have the educators performed?

Accepted Answer

A)  two-way ANOVA 
B)  MANOVA 
C)  ANCOVA 
D)  one-way ANOVA 
A)  two-way ANOVA 
B)  MANOVA 
C)  ANCOVA 
D)  one-way ANOVA

Question 4

In a two-way between-groups ANOVA, there are three sources of variability, one for each effect.

Accepted Answer

A) True 
 B)False

Question 5

A researcher is interested in whether circadian rhythms influence participants' performance on different kinds of memory tests.The researcher first classifies participants according to whether each is a morning person or an evening person.The researcher then randomly assigns participants to receive either an implicit memory test or an explicit memory test.The researcher then tests everyone at 8 a.m.How should the ANOVA used to analyze the data be labeled?

Accepted Answer

A)  4 × 2 between-groups ANOVA 
B)  4 × 2 within-groups ANOVA 
C)  2 × 2 between-groups ANOVA 
D)  2 × 2 within-groups ANOVA 
A)  4 × 2 between-groups ANOVA 
B)  4 × 2 within-groups ANOVA 
C)  2 × 2 between-groups ANOVA 
D)  2 × 2 within-groups ANOVA

Question 6

When looking up a critical value for F, the within-groups degrees of freedom is the same for each test in a two-way between-groups ANOVA.

Accepted Answer

A) True 
 B)False

Question 7

The Educational Testing Services (ETS) is conducting a study to determine the relation between method of presentation (standard lecture vs.computer presentation) and type of lecture (psychology, English, statistics) to lecture comprehension.What kind of ANOVA should ETS use and what are the factors and/or levels?

Accepted Answer

A)  One-way ANOVA: Factor 1 is lecture, with two levels (presentation vs.lecture type). 
B)  Two-way ANOVA: Factor 1 is presentation, with two levels (standard vs.computer), and factor 2 is lecture type, with three levels (psychology, English, and statistics). 
C)  Three-way ANOVA: Factor 1 is presentation, with two levels (standard vs.computer), factor 2 is lecture type, with three levels (psychology, English, and statistics), and factor 3 is lecture comprehension. 
D)  Higher-order ANOVA: Factor 1 is standard presentation, factor 2 is computer presentation, factor 3 is psychology lecture, factor 4 is English lecture, and factor 5 is statistics lecture. 
A)  One-way ANOVA: Factor 1 is lecture, with two levels (presentation vs.lecture type). 
B)  Two-way ANOVA: Factor 1 is presentation, with two levels (standard vs.computer), and factor 2 is lecture type, with three levels (psychology, English, and statistics). 
C)  Three-way ANOVA: Factor 1 is presentation, with two levels (standard vs.computer), factor 2 is lecture type, with three levels (psychology, English, and statistics), and factor 3 is lecture comprehension. 
D)  Higher-order ANOVA: Factor 1 is standard presentation, factor 2 is computer presentation, factor 3 is psychology lecture, factor 4 is English lecture, and factor 5 is statistics lecture.

Question 8

When determining the critical value or cutoffs for the three effects tested in a two-way between-groups ANOVA, what value is always the same for each effect?

Accepted Answer

A)  within-groups degrees of freedom 
B)  degrees of freedom for columns 
C)  degrees of freedom for rows 
D)  degrees of freedom for the interaction 
A)  within-groups degrees of freedom 
B)  degrees of freedom for columns 
C)  degrees of freedom for rows 
D)  degrees of freedom for the interaction

Question 9

A main effect for a two-way ANOVA is the:

Accepted Answer

A)  research hypothesis of the study. 
B)  influence of the dependent variable on one of the independent variables. 
C)  influence of one of the independent variables on the dependent variable. 
D)  main experimenter's bias as a confound to the study. 
A)  research hypothesis of the study. 
B)  influence of the dependent variable on one of the independent variables. 
C)  influence of one of the independent variables on the dependent variable. 
D)  main experimenter's bias as a confound to the study.

Question 10

The Educational Testing Services (ETS) is conducting a study to determine the relation between method of presentation (standard lecture vs.computer presentation) and type of lecture (psychology, English, or statistics) to lecture comprehension.How would we describe the design?

Accepted Answer

A)  one-way ANOVA 
B)  2 X 3 between-groups ANOVA 
C)  2 X 3 within-groups ANOVA 
D)  1 X 2 between-groups ANOVA 
A)  one-way ANOVA 
B)  2 X 3 between-groups ANOVA 
C)  2 X 3 within-groups ANOVA 
D)  1 X 2 between-groups ANOVA

Question 11

Roediger and Karpicke (2006) investigated whether the test-enhanced learning effect (the demonstration that repeated testing improves memory for material) was due merely to repeated exposure to material.They randomly assigned participants to one of two study conditions (study-study or study-test) and to one of three retention interval conditions (final test at a delay of 5 minutes, 2 days, or 1 week).The dependent variable was the proportion of idea units recalled from an encyclopedia passage.How many cells does this study have?

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  10 
A)  2 
B)  4 
C)  6 
D)  10

Question 12

Interactions are evident in intersecting or eventually intersecting lines in a bar graph of the cell means.

Accepted Answer

A) True 
 B)False

Question 13

The correct formula for calculating the sum of squares for the between-groups variables, represented as rows or columns, is:

Accepted Answer

A)  $ \Sigma$(X - GM)2. 
B)  $ \Sigma$(Mrow or column - GM)2. 
C)  $ \Sigma$(X - Mcell)2. 
D)  $ \Sigma$(Mcell - X)2. 
A)  $ \Sigma$(X - GM)2. 
B)  $ \Sigma$(Mrow or column - GM)2. 
C)  $ \Sigma$(X - Mcell)2. 
D)  $ \Sigma$(Mcell - X)2.

Question 14

The owners of the Syfy channel are interested in whether watching the Syfy channel causes people to become "geeky," and if so, whether any such effects depend on a person's gender.They hire a researcher to design and carry out the appropriate study.The researcher randomly assigns an equal number of men and women to watch 0, 3, 5, or 9 hours of the Syfy channel each week for 6 weeks.How should the ANOVA used to analyze the data be labeled?

Accepted Answer

A)  4 × 2 between-groups ANOVA 
B)  4 × 2 within-groups ANOVA 
C)  2 × 2 between-groups ANOVA 
D)  2 × 2 within-groups ANOVA 
A)  4 × 2 between-groups ANOVA 
B)  4 × 2 within-groups ANOVA 
C)  2 × 2 between-groups ANOVA 
D)  2 × 2 within-groups ANOVA

Question 15

Forys and Dahlquist (2007) investigated the effects of coping style and cognitive strategy on dealing with pain.Participants were first classified as having a monitoring or avoiding coping style.Participants were then randomly assigned to one of two cognitive strategy conditions, distraction or sensation monitoring.Participants were next instructed to use the cognitive strategy while submerging their hand in ice water.The researchers measured pain tolerance as the number of seconds participants were able to keep their hand in the ice water.How many cells does this study have?

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  8 
A)  2 
B)  4 
C)  6 
D)  8

Question 16

Within-groups degrees of freedom in a two-way ANOVA is calculated by:

Accepted Answer

A)  multiplying together the degrees of freedom associated with each of the main effects. 
B)  adding together the degrees of freedom associated with each of the main effects. 
C)  subtracting the degrees of freedom for the first main effect from that of the second main effect. 
D)  subtracting a single participant from each cell of the study and then adding the results for all the cells. 
A)  multiplying together the degrees of freedom associated with each of the main effects. 
B)  adding together the degrees of freedom associated with each of the main effects. 
C)  subtracting the degrees of freedom for the first main effect from that of the second main effect. 
D)  subtracting a single participant from each cell of the study and then adding the results for all the cells.

Question 17

A factor is another word to describe the dependent variable in a two-way ANOVA.

Accepted Answer

A) True 
 B)False

Question 18

_____ is a term used to describe an independent variable in a study with more than one independent variable.

Accepted Answer

A)  Interaction 
B)  Subjects effect 
C)  Effect 
D)  Factor 
A)  Interaction 
B)  Subjects effect 
C)  Effect 
D)  Factor

Question 19

In a two-way ANOVA, three _____ statistics are calculated.

Accepted Answer

A)  z 
B)  F 
C)  t 
D)  R2 
A)  z 
B)  F 
C)  t 
D)  R2

Question 20

In a two-way ANOVA, differences among row means are used to assess the interaction effect.

Accepted Answer

A) True 
 B)False

Analysis of covariance involves:

A two-way ANOVA accounts for _____ sources of variability.

In a two-way between-groups ANOVA, there are three sources of variability, one for each effect.

When looking up a critical value for F, the within-groups degrees of freedom is the same for each test in a two-way between-groups ANOVA.

When determining the critical value or cutoffs for the three effects tested in a two-way between-groups ANOVA, what value is always the same for each effect?

A main effect for a two-way ANOVA is the:

The Educational Testing Services (ETS) is conducting a study to determine the relation between method of presentation (standard lecture vs.computer presentation) and type of lecture (psychology, English, or statistics) to lecture comprehension.How would we describe the design?

Interactions are evident in intersecting or eventually intersecting lines in a bar graph of the cell means.

The correct formula for calculating the sum of squares for the between-groups variables, represented as rows or columns, is:

Within-groups degrees of freedom in a two-way ANOVA is calculated by:

A factor is another word to describe the dependent variable in a two-way ANOVA.

_____ is a term used to describe an independent variable in a study with more than one independent variable.

In a two-way ANOVA, three _____ statistics are calculated.

In a two-way ANOVA, differences among row means are used to assess the interaction effect.

An Introduction to Statistics and Research Design

Frequency Distributions

Visual Displays of Data

Central Tendency and Variability

Sampling and Probability

The Normal Curve, Standardization and Z Scores

Hypothesis Testing With Z Tests

Confidence Intervals, Effect Size, and Statistical Power

The Single-Sample T Test

The Paired-Samples T Test

The Independent-Samples T Test

One-Way Between-Groups Anova

One-Way Within-Groups Anova

Correlation

Regression

Chi-Square Tess

Choosing and Reporting Statistics

Filters

Exam 14: Two-Way Between-Groups Anova

Analysis of covariance involves:

A two-way ANOVA accounts for _____ sources of variability.

In a two-way between-groups ANOVA, there are three sources of variability, one for each effect.

When looking up a critical value for F, the within-groups degrees of freedom is the same for each test in a two-way between-groups ANOVA.

When determining the critical value or cutoffs for the three effects tested in a two-way between-groups ANOVA, what value is always the same for each effect?

A main effect for a two-way ANOVA is the:

The Educational Testing Services (ETS) is conducting a study to determine the relation between method of presentation (standard lecture vs.computer presentation) and type of lecture (psychology, English, or statistics) to lecture comprehension.How would we describe the design?

Interactions are evident in intersecting or eventually intersecting lines in a bar graph of the cell means.

The correct formula for calculating the sum of squares for the between-groups variables, represented as rows or columns, is:

Within-groups degrees of freedom in a two-way ANOVA is calculated by:

A factor is another word to describe the dependent variable in a two-way ANOVA.

_____ is a term used to describe an independent variable in a study with more than one independent variable.

In a two-way ANOVA, three _____ statistics are calculated.

In a two-way ANOVA, differences among row means are used to assess the interaction effect.

An Introduction to Statistics and Research Design

Frequency Distributions

Visual Displays of Data

Central Tendency and Variability

Sampling and Probability

The Normal Curve, Standardization and Z Scores

Hypothesis Testing With Z Tests

Confidence Intervals, Effect Size, and Statistical Power

The Single-Sample T Test

The Paired-Samples T Test

The Independent-Samples T Test

One-Way Between-Groups Anova

One-Way Within-Groups Anova

Correlation

Regression

Chi-Square Tess

Choosing and Reporting Statistics

Filters