Question 1

The first step in interpreting a significant interaction is to

Accepted Answer

A) test the simple main effects. 
B) inspect the means for the main effects. 
C) conduct an ANOVA. 
D) do follow-up or post hoc tests. 
A) test the simple main effects. 
B) inspect the means for the main effects. 
C) conduct an ANOVA. 
D) do follow-up or post hoc tests. A

Question 2

When are t-tests, ANOVA, and MANOVA used?

Accepted Answer

A) To analyze data from experiments only 
B) To analyze data from correlational designs only 
C) To analyze data from both experimental and nonexperimental designs 
D) None of these answers are correct. 
A) To analyze data from experiments only 
B) To analyze data from correlational designs only 
C) To analyze data from both experimental and nonexperimental designs 
D) None of these answers are correct. C

Question 3

To calculate a value for t, you divide the

Accepted Answer

A) error variance by the sample size. 
B) sample variance by the population variance. 
C) degrees of freedom by the variance. 
D) difference between the means by the error variance. 
A) error variance by the sample size. 
B) sample variance by the population variance. 
C) degrees of freedom by the variance. 
D) difference between the means by the error variance. D

Question 4

In two sentences or less, describe the rationale behind the F-test.

Accepted Answer

The F-test is used to compare statistica

Question 5

The paired t-test

Accepted Answer

A) requires that two t-tests be conducted. 
B) is less powerful than the randomized t-test. 
C) is used to analyze within-subjects designs. 
D) tests differences between pairs of participants. 
A) requires that two t-tests be conducted. 
B) is less powerful than the randomized t-test. 
C) is used to analyze within-subjects designs. 
D) tests differences between pairs of participants.

Question 6

If we calculate the sum of squares separately for each experimental condition, then sum them, we get the

Accepted Answer

A) total sum of squares. 
B) mean square within-groups. 
C) means square between-groups. 
D) sum of squares within-groups. 
A) total sum of squares. 
B) mean square within-groups. 
C) means square between-groups. 
D) sum of squares within-groups.

Question 7

When do researchers use multivariate analysis of variance (MANOVA)?

Accepted Answer

Researchers use Multivariate Analysis of

Question 8

When would you use a multivariate analysis of variance?

Accepted Answer

A) To analyze data from designs with several independent variables 
B) To conduct a within-subjects analysis 
C) To protect against Type II error 
D) To analyze a set of dependent variables 
A) To analyze data from designs with several independent variables 
B) To conduct a within-subjects analysis 
C) To protect against Type II error 
D) To analyze a set of dependent variables

Question 9

The Bonferroni adjustment is used to

Accepted Answer

A) increase power. 
B) reduce the likelihood of a Type I error. 
C) test interactions between variables. 
D) lower error variance. 
A) increase power. 
B) reduce the likelihood of a Type I error. 
C) test interactions between variables. 
D) lower error variance.

Question 10

A directional hypothesis

Accepted Answer

A) is tested with a paired t-test. 
B) stipulates whether alpha or beta is more important. 
C) requires more participants than a nondirectional hypothesis. 
D) predicts which of two means will be larger. 
A) is tested with a paired t-test. 
B) stipulates whether alpha or beta is more important. 
C) requires more participants than a nondirectional hypothesis. 
D) predicts which of two means will be larger.

Question 11

The effect of the independent variable is reflected in the

Accepted Answer

A) sum of squares between-groups. 
B) mean square within-groups. 
C) degrees of freedom. 
D) grand mean. 
A) sum of squares between-groups. 
B) mean square within-groups. 
C) degrees of freedom. 
D) grand mean.

Question 12

The effect of one independent variable at a particular level of another independent variable is a(n)

Accepted Answer

A) F-ratio. 
B) post hoc effect. 
C) simple main effect. 
D) between-groups effect. 
A) F-ratio. 
B) post hoc effect. 
C) simple main effect. 
D) between-groups effect.

Question 13

F = MSbg / ________

Accepted Answer

A) SSbg 
B) MStotal 
C) dfbg 
D) MSwg 
A) SSbg 
B) MStotal 
C) dfbg 
D) MSwg

Question 14

What are simple main effects, and when do researchers test them?

Accepted Answer

Simple main effects are the effects of o

Question 15

If the calculated value of F is 5.76 and the critical value of F is 2.37, the researcher will

Accepted Answer

A) make a Type I error. 
B) reject the null hypothesis. 
C) conclude that the group means do not differ. 
D) perform a t-test. 
A) make a Type I error. 
B) reject the null hypothesis. 
C) conclude that the group means do not differ. 
D) perform a t-test.

Question 16

What statistical analysis is used to analyze data from experimental designs that involve more than two conditions?

Accepted Answer

A) T-test 
B) Regression 
C) Chi-square test 
D) Analysis of variance 
A) T-test 
B) Regression 
C) Chi-square test 
D) Analysis of variance

Question 17

In principle, if no interaction is present in a two-way factorial design, SStotal =

Accepted Answer

A) SSA + SSB. 
B) SSA + SSB + SSwg. 
C) SSwg - (SSA + SS
B) . 
D) SSA×B. 
A) SSA + SSB. 
B) SSA + SSB + SSwg. 
C) SSwg - (SSA + SS
B) . 
D) SSA×B.

Question 18

If the calculated value of t exceeds the critical value of t, the researcher

Accepted Answer

A) fails to reject the null hypothesis. 
B) commits a Type I error. 
C) has made a calculation error. 
D) rejects the null hypothesis. 
A) fails to reject the null hypothesis. 
B) commits a Type I error. 
C) has made a calculation error. 
D) rejects the null hypothesis.

Question 19

The numerator of the formula for the t-test contains

Accepted Answer

A) the condition means. 
B) an estimate of the error variance. 
C) the sample size. 
D) the pooled standard deviation. 
A) the condition means. 
B) an estimate of the error variance. 
C) the sample size. 
D) the pooled standard deviation.

Question 20

If the independent variable in an experiment had absolutely no effect on participants' responses, all of the variance in the data is _______ variance.

Accepted Answer

A) reliable 
B) between-groups 
C) error 
D) confounded 
A) reliable 
B) between-groups 
C) error 
D) confounded

The first step in interpreting a significant interaction is to

When are t-tests, ANOVA, and MANOVA used?

To calculate a value for t, you divide the

In two sentences or less, describe the rationale behind the F-test.

The paired t-test

If we calculate the sum of squares separately for each experimental condition, then sum them, we get the

When do researchers use multivariate analysis of variance (MANOVA)?

When would you use a multivariate analysis of variance?

The Bonferroni adjustment is used to

A directional hypothesis

The effect of the independent variable is reflected in the

The effect of one independent variable at a particular level of another independent variable is a(n)

F = MS_bg / ________

What are simple main effects, and when do researchers test them?

If the calculated value of F is 5.76 and the critical value of F is 2.37, the researcher will

What statistical analysis is used to analyze data from experimental designs that involve more than two conditions?

In principle, if no interaction is present in a two-way factorial design, SS_total =

If the calculated value of t exceeds the critical value of t, the researcher

The numerator of the formula for the t-test contains

If the independent variable in an experiment had absolutely no effect on participants' responses, all of the variance in the data is _______ variance.

Research in the Behavioral Sciences

Behavioral Variability and Research

The Measurement of Behavior

Approaches to Psychological Measurement

Selecting Research Participants

Descriptive Research

Correlational Research

Advanced Correlational Strategies

Basic Issues in Experimental Research

Experimental Design

Analyzing Experimental Data: Basic Concepts

Quasi-Experimental Designs

Single-Case Research

Ethical Issues in Behavioral Research

Scientific Writing

Filters

Exam 12: Statistical Analysis

The first step in interpreting a significant interaction is to

When are t-tests, ANOVA, and MANOVA used?

To calculate a value for t, you divide the

In two sentences or less, describe the rationale behind the F-test.

The paired t-test

If we calculate the sum of squares separately for each experimental condition, then sum them, we get the

When do researchers use multivariate analysis of variance (MANOVA)?

When would you use a multivariate analysis of variance?

The Bonferroni adjustment is used to

A directional hypothesis

The effect of the independent variable is reflected in the

The effect of one independent variable at a particular level of another independent variable is a(n)

F = MSbg / ________

What are simple main effects, and when do researchers test them?

If the calculated value of F is 5.76 and the critical value of F is 2.37, the researcher will

What statistical analysis is used to analyze data from experimental designs that involve more than two conditions?

In principle, if no interaction is present in a two-way factorial design, SStotal =

If the calculated value of t exceeds the critical value of t, the researcher

The numerator of the formula for the t-test contains

If the independent variable in an experiment had absolutely no effect on participants' responses, all of the variance in the data is _______ variance.

Research in the Behavioral Sciences

Behavioral Variability and Research

The Measurement of Behavior

Approaches to Psychological Measurement

Selecting Research Participants

Descriptive Research

Correlational Research

Advanced Correlational Strategies

Basic Issues in Experimental Research

Experimental Design

Analyzing Experimental Data: Basic Concepts

Quasi-Experimental Designs

Single-Case Research

Ethical Issues in Behavioral Research

Scientific Writing

Filters

F = MS_bg / ________

In principle, if no interaction is present in a two-way factorial design, SS_total =