Question 1

Match each of the following terms with the correct statement.
-Independent Samples t Test

Accepted Answer

A) Used to test for an independent samples effect size. 
B) Used to compare two interval/ratio level scores that are taken from the same group at two distinct time periods. 
C) Examines one nominal variable with two categories and their scores on one dependent interval/ratio variable. 
A) Used to test for an independent samples effect size. 
B) Used to compare two interval/ratio level scores that are taken from the same group at two distinct time periods. 
C) Examines one nominal variable with two categories and their scores on one dependent interval/ratio variable. C

Question 2

The independent samples t test allows a researcher to examine the differences on an interval or ratio variable between two nominal variables.

Accepted Answer

A) True 
 B)False  True

Question 3

For the following questions use the t test results that are presented below. A researcher wanted to examine differences between male (1) and female (2) verbal aggression scores. Here are the data he found:

-In the t test presented, which of the following is the correct APA write-up?

Accepted Answer

A) t(8) = 1.50, p = .17 
B) t(5.21) = 1.50, p = .18 
C) t(8) = .36, p  .05 
A) t(8) = 1.50, p = .17 
B) t(5.21) = 1.50, p = .18 
C) t(8) = .36, p  .05 B

Question 4

If a t test is not statistically significant, a researcher must accept the null hypothesis.

Accepted Answer

A) True 
 B)False

Question 5

Match each of the following terms with the correct statement.
-Cohen's d

Accepted Answer

A) Used to test for an independent samples effect size. 
B) Used to compare two interval/ratio level scores that are taken from the same group at two distinct time periods. 
C) Examines one nominal variable with two categories and their scores on one dependent interval/ratio variable. 
A) Used to test for an independent samples effect size. 
B) Used to compare two interval/ratio level scores that are taken from the same group at two distinct time periods. 
C) Examines one nominal variable with two categories and their scores on one dependent interval/ratio variable.

Question 6

If equal variances cannot be assumed, the t test should be tweaked.

Accepted Answer

A) True 
 B)False

Question 7

For the following questions use the t test results that are presented below. A researcher wanted to examine differences between male (1) and female (2) verbal aggression scores. Here are the data he found:

-In the t test presented, what is the correct write-up for Levene's test for equality of variances?

Accepted Answer

A) (F = .36, p > .05) B) (F = .36, p < .05) C) (F = 1.50, p = .17) D) (F = 1.50, p = .18) A) (F = .36, p > .05) B) (F = .36, p < .05) C) (F = 1.50, p = .17) D) (F = 1.50, p = .18)

Question 8

The nominal variable in a t test can have how many distinct categories?

Accepted Answer

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

Question 9

Which of the following assumptions of the independent samples t test is not accurate?

Accepted Answer

A) The dependent variable must be an interval or ratio variable. 
B) The independent variable must be a nominal variable. 
C) The dependent variable need not be normally distributed in both of the independent variable levels. 
D) A sample should be drawn from populations with equal variances on the dependent variable. 
A) The dependent variable must be an interval or ratio variable. 
B) The independent variable must be a nominal variable. 
C) The dependent variable need not be normally distributed in both of the independent variable levels. 
D) A sample should be drawn from populations with equal variances on the dependent variable.

Question 10

For the following questions use the t test results that are presented below. A researcher wanted to examine differences between male (1) and female (2) verbal aggression scores. Here are the data he found:

-In the t test presented, which of the following statements is correct?

Accepted Answer

A) The t test was not statistically significant. 
B) The t test was statistically significant. 
C) The t test reported a large effect size. 
D) The t test reported a small effect size. 
A) The t test was not statistically significant. 
B) The t test was statistically significant. 
C) The t test reported a large effect size. 
D) The t test reported a small effect size.

Question 11

If any assumption of the independent t test is violated, the meaning of the t test is lost.

Accepted Answer

A) True 
 B)False

Question 12

Explain the purpose of a t test.

Accepted Answer

The purpose of a t-test is to determine

Question 13

Interpret the t test results that are provided below. In this study, the researchers were examining if female and male participants differed in their levels of communication apprehension when interacting with police.

Accepted Answer

The answer of Interpret the t test results that are...

Question 14

Explain the assumptions of the independent samples t test.

Accepted Answer

The independent samples t-test makes sev

Question 15

If a t test is statistically significant, what test do you need to calculate by hand?

Accepted Answer

A) Cohen's d 
B) Cohen's kappa 
C) Cronbach's alpha 
D) Cramer's V 
A) Cohen's d 
B) Cohen's kappa 
C) Cronbach's alpha 
D) Cramer's V

Question 16

Wendy wants to statistically test the difference between class rank (nominal variable with four independent groups) and communication apprehension (interval variable). For what reason
Should Wendy not consider use of an independent samples t test?

Accepted Answer

A) an independent samples t test cannot be used if the dependent variable is interval 
B) an independent samples t test cannot be used if the independent variable has more than two independent groups 
C) an independent samples t test cannot be used with a nominal independent variable 
D) an independent samples t test cannot be used when investigating differences 
A) an independent samples t test cannot be used if the dependent variable is interval 
B) an independent samples t test cannot be used if the independent variable has more than two independent groups 
C) an independent samples t test cannot be used with a nominal independent variable 
D) an independent samples t test cannot be used when investigating differences

Question 17

A statistical program (such as SPSS) may be used to interpret independent t test statistics.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following illustrates the correct way to write up an independent t test using APA
Format?

Accepted Answer

A) t(4.62) = 2.17, p = .06 
B) t(4.62) = 2.17 
C) p = .06, t(4.62) 
D) t(4.62) 
A) t(4.62) = 2.17, p = .06 
B) t(4.62) = 2.17 
C) p = .06, t(4.62) 
D) t(4.62)

Question 19

Julian is in the process of calculating a t test. After finding out that his t test was statistically significant, he conducts an effect size test. The calculated value he receives is .59. How would you interpret the effect size?

Accepted Answer

A) medium effect size 
B) small effect size 
C) large effect size 
D) enormous effect size 
A) medium effect size 
B) small effect size 
C) large effect size 
D) enormous effect size

Question 20

For the following questions use the t test results that are presented below. A researcher wanted to examine differences between male (1) and female (2) verbal aggression scores. Here are the data he found:

-In the t test presented, what is the calculated value?

Accepted Answer

A) 1.50 
B) .36 
C) .56 
D) 5.21 
A) 1.50 
B) .36 
C) .56 
D) 5.21

Match each of the following terms with the correct statement. -Independent Samples t Test

The independent samples t test allows a researcher to examine the differences on an interval or ratio variable between two nominal variables.

For the following questions use the t test results that are presented below. A researcher wanted to examine differences between male (1) and female (2) verbal aggression scores. Here are the data he found: -In the t test presented, which of the following is the correct APA write-up?

If a t test is not statistically significant, a researcher must accept the null hypothesis.

Match each of the following terms with the correct statement. -Cohen's d

If equal variances cannot be assumed, the t test should be tweaked.

The nominal variable in a t test can have how many distinct categories?

Which of the following assumptions of the independent samples t test is not accurate?

For the following questions use the t test results that are presented below. A researcher wanted to examine differences between male (1) and female (2) verbal aggression scores. Here are the data he found: -In the t test presented, which of the following statements is correct?

If any assumption of the independent t test is violated, the meaning of the t test is lost.

Explain the purpose of a t test.

Interpret the t test results that are provided below. In this study, the researchers were examining if female and male participants differed in their levels of communication apprehension when interacting with police.

Explain the assumptions of the independent samples t test.

If a t test is statistically significant, what test do you need to calculate by hand?

Wendy wants to statistically test the difference between class rank (nominal variable with four independent groups) and communication apprehension (interval variable). For what reason Should Wendy not consider use of an independent samples t test?

A statistical program (such as SPSS) may be used to interpret independent t test statistics.

Which of the following illustrates the correct way to write up an independent t test using APA Format?

Julian is in the process of calculating a t test. After finding out that his t test was statistically significant, he conducts an effect size test. The calculated value he receives is .59. How would you interpret the effect size?

For the following questions use the t test results that are presented below. A researcher wanted to examine differences between male (1) and female (2) verbal aggression scores. Here are the data he found: -In the t test presented, what is the calculated value?

An Introduction to Communication Research

Empirical Research

Research Ethics

Searching for Previous Research and American Psychological Association Style

Research Structure and Literature Reviews

Variables

Measurement

Reliability and Validity

Survey Research

Content Analysis

Experimental Design

Sampling Methods

Hypothesis Testing

Descriptive Statistics

Chi-Square 2 Test of Independence

One-Way Analysis of Variance

Correlation

Regression

Presenting Research

Statistical Tests and Concepts in Research Analysis

Filters

Exam 16: Independent Samples T Tests

Match each of the following terms with the correct statement. -Independent Samples t Test

The independent samples t test allows a researcher to examine the differences on an interval or ratio variable between two nominal variables.

For the following questions use the t test results that are presented below. A researcher wanted to examine differences between male (1) and female (2) verbal aggression scores. Here are the data he found: -In the t test presented, which of the following is the correct APA write-up?

If a t test is not statistically significant, a researcher must accept the null hypothesis.

Match each of the following terms with the correct statement. -Cohen's d

If equal variances cannot be assumed, the t test should be tweaked.

The nominal variable in a t test can have how many distinct categories?

Which of the following assumptions of the independent samples t test is not accurate?

For the following questions use the t test results that are presented below. A researcher wanted to examine differences between male (1) and female (2) verbal aggression scores. Here are the data he found: -In the t test presented, which of the following statements is correct?

If any assumption of the independent t test is violated, the meaning of the t test is lost.

Explain the purpose of a t test.

Interpret the t test results that are provided below. In this study, the researchers were examining if female and male participants differed in their levels of communication apprehension when interacting with police.

Explain the assumptions of the independent samples t test.

If a t test is statistically significant, what test do you need to calculate by hand?

Wendy wants to statistically test the difference between class rank (nominal variable with four independent groups) and communication apprehension (interval variable). For what reason Should Wendy not consider use of an independent samples t test?

A statistical program (such as SPSS) may be used to interpret independent t test statistics.

Which of the following illustrates the correct way to write up an independent t test using APA Format?

Julian is in the process of calculating a t test. After finding out that his t test was statistically significant, he conducts an effect size test. The calculated value he receives is .59. How would you interpret the effect size?

For the following questions use the t test results that are presented below. A researcher wanted to examine differences between male (1) and female (2) verbal aggression scores. Here are the data he found: -In the t test presented, what is the calculated value?

An Introduction to Communication Research

Empirical Research

Research Ethics

Searching for Previous Research and American Psychological Association Style

Research Structure and Literature Reviews

Variables

Measurement

Reliability and Validity

Survey Research

Content Analysis

Experimental Design

Sampling Methods

Hypothesis Testing

Descriptive Statistics

Chi-Square 2 Test of Independence

One-Way Analysis of Variance

Correlation

Regression

Presenting Research

Statistical Tests and Concepts in Research Analysis

Filters