Question 1

Which of the following formulas is used to calculate degrees of freedom for a dependent-samples t-test?

Accepted Answer

A) k − 1 
B) n − 1 
C) n(1) 
D) k + 1 
A) k − 1 
B) n − 1 
C) n(1) 
D) k + 1

Question 2

Dr.Moo would like to find out if there was a significant difference between male and female patients' anxiety scores.What is the appropriate test to run?

Accepted Answer

A) independent-samples t-test 
B) factorial ANOVA 
C) dependent-samples t-test 
D) Pearson correlation 
A) independent-samples t-test 
B) factorial ANOVA 
C) dependent-samples t-test 
D) Pearson correlation

Question 3

If the obtained value is less than the critical value, what should you do?

Accepted Answer

A) reject the null hypothesis 
B) accept the null hypothesis 
C) accept the research hypothesis 
D) decrease your p value 
A) reject the null hypothesis 
B) accept the null hypothesis 
C) accept the research hypothesis 
D) decrease your p value

Question 4

According to the equation t₍₇₈₎ = 1.03, p < .01, how many individuals were there in the group?

Accepted Answer

A) 77 
B) 78 
C) 79 
D) 80 
A) 77 
B) 78 
C) 79 
D) 80

Question 5

In running a dependent-sample t-test, how many subjects were there in the group based on the following: t₍₅₈₎ = 5.015, p < .01?

Accepted Answer

A) 56 
B) 57 
C) 58 
D) 59 
A) 56 
B) 57 
C) 58 
D) 59

Question 6

When a researcher matches participants from different counseling graduate programs on variables such as age, gender, and a measure of multicultural understanding, the researcher can use a dependent-samples t-test in the study.

Accepted Answer

A) True 
 B)False

Question 7

The test statistic calculated by the statistical procedure selected is known as the _______.

Accepted Answer

A) critical value 
B) significance level 
C) obtained value 
D) p value 
A) critical value 
B) significance level 
C) obtained value 
D) p value

Question 8

If you are running a t-test for dependent means on a group of 96 individuals, your degrees of freedom will be _______.

Accepted Answer

A) 94 
B) 95 
C) 96 
D) 90 
A) 94 
B) 95 
C) 96 
D) 90

Question 9

Dr.Moo would like to find out if participants who love cats receive more speeding tickets than participants who love dogs.Identify the type of test she would need to use to determine this, and explain your answer.

Accepted Answer

Dr.Moo should use an independe

Question 10

Under what circumstances would you use a t-test for dependent samples?

Accepted Answer

A t-test for dependent samples

Question 11

If you are running a t-test for dependent means on a group of 54 individuals, your degrees of freedom will be _______.

Accepted Answer

A) 54 
B) 55 
C) 53 
D) 56 
A) 54 
B) 55 
C) 53 
D) 56

Question 12

The statistical procedure is used to generate the test statistic.What is test statistic known as?

Accepted Answer

A) critical value 
B) significance level 
C) obtained value 
D) p value 
A) critical value 
B) significance level 
C) obtained value 
D) p value

Question 13

If you want to examine one group of subjects under two different conditions, which statistical technique should you select?

Accepted Answer

A) regression 
B) dependent-samples t-test 
C) analysis of variance 
D) independent-samples t-test 
A) regression 
B) dependent-samples t-test 
C) analysis of variance 
D) independent-samples t-test

Question 14

What is the numerator of the t-test in the dependent-means formula?

Accepted Answer

A) ∑D 
B) n 
C) M₁ − M₂ 
D) ∑D² (n − 1) 
A) ∑D 
B) n 
C) M₁ − M₂ 
D) ∑D² (n − 1)

Question 15

In the following, what are the degrees of freedom: t₍₅₈₎ = 5.015, p < .01?

Accepted Answer

A) 56 
B) 57 
C) 58 
D) 59 
A) 56 
B) 57 
C) 58 
D) 59

Question 16

Dr.Moo would like to find out if participants who ate glazed donuts became happier after they ate jelly-filled donuts.What test should you use to determine this?

Accepted Answer

A) factorial ANOVA 
B) independent-samples t-test 
C) dependent-samples t-test 
D) repeated-measures ANOVA 
A) factorial ANOVA 
B) independent-samples t-test 
C) dependent-samples t-test 
D) repeated-measures ANOVA

Question 17

Dr.Moo would like to find out if there was a significant difference between her patients' anxiety scores before and after they completed a yoga program.What is the appropriate test to run?

Accepted Answer

A) independent-samples t-test 
B) factorial ANOVA 
C) dependent-samples t-test 
D) Pearson correlation 
A) independent-samples t-test 
B) factorial ANOVA 
C) dependent-samples t-test 
D) Pearson correlation

Question 18

In running a t-test for dependent means on a group of individuals, how many individuals are there in the group when the degree of freedom is 58?

Accepted Answer

A) 57 
B) 58 
C) 59 
D) 60 
A) 57 
B) 58 
C) 59 
D) 60

Question 19

If the group has 30 individuals, what are the degrees of freedom for a dependent-samples t-test?

Accepted Answer

A) 30 − 1 
B) 29 − 1 
C) 28 − 1 
D) 27 −1 
A) 30 − 1 
B) 29 − 1 
C) 28 − 1 
D) 27 −1

Question 20

If the obtained value in a dependent-samples t-test exceeds the critical value, the null hypothesis cannot be accepted.

Accepted Answer

A) True 
 B)False

Exam 12: Tea for Two Again: Tests Between the Means of Related Groups

Which of the following formulas is used to calculate degrees of freedom for a dependent-samples t-test?

Dr.Moo would like to find out if there was a significant difference between male and female patients' anxiety scores.What is the appropriate test to run?

If the obtained value is less than the critical value, what should you do?

According to the equation t₍₇₈₎ = 1.03, p < .01, how many individuals were there in the group?

In running a dependent-sample t-test, how many subjects were there in the group based on the following: t₍₅₈₎ = 5.015, p < .01?

When a researcher matches participants from different counseling graduate programs on variables such as age, gender, and a measure of multicultural understanding, the researcher can use a dependent-samples t-test in the study.

The test statistic calculated by the statistical procedure selected is known as the _______.

If you are running a t-test for dependent means on a group of 96 individuals, your degrees of freedom will be _______.

Dr.Moo would like to find out if participants who love cats receive more speeding tickets than participants who love dogs.Identify the type of test she would need to use to determine this, and explain your answer.

Under what circumstances would you use a t-test for dependent samples?

If you are running a t-test for dependent means on a group of 54 individuals, your degrees of freedom will be _______.

The statistical procedure is used to generate the test statistic.What is test statistic known as?

If you want to examine one group of subjects under two different conditions, which statistical technique should you select?

What is the numerator of the t-test in the dependent-means formula?

In the following, what are the degrees of freedom: t₍₅₈₎ = 5.015, p < .01?

Dr.Moo would like to find out if participants who ate glazed donuts became happier after they ate jelly-filled donuts.What test should you use to determine this?

Dr.Moo would like to find out if there was a significant difference between her patients' anxiety scores before and after they completed a yoga program.What is the appropriate test to run?

In running a t-test for dependent means on a group of individuals, how many individuals are there in the group when the degree of freedom is 58?

If the group has 30 individuals, what are the degrees of freedom for a dependent-samples t-test?

If the obtained value in a dependent-samples t-test exceeds the critical value, the null hypothesis cannot be accepted.

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