Question 1

The Mann-Whitney U test tests the difference between sample means.

Accepted Answer

A) True 
 B)False

Question 2

To compute c 2 , the entries in the contingency table should be _________.

Accepted Answer

A)  frequencies 
B)  means 
C)  variances 
D)  degrees of freedom 
A)  frequencies 
B)  means 
C)  variances 
D)  degrees of freedom

Question 3

A social scientist wants to know if education and socioeconomic status (SES) are independent. He collects the following data.   What do you conclude using a = 0.05?

Accepted Answer

The answer of A social scientist wants to know if...

Question 4

In Chapter 16, we presented the data from an independent groups design and asked if it was appropriate to use parametric ANOVA. The data are presented again below. The correct answer was that it was not appropriate to use parametric ANOVA because of unequal n s and homogeneity of variance assumption violation. Instead, analyze the data with the Kruskal-Wallis test.   What are the df?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  need more information 
A)  1 
B)  2 
C)  3 
D)  need more information

Question 5

In Chapter 16, we presented the data from an independent groups design and asked if it was appropriate to use parametric ANOVA. The data are presented again here. The correct answer was that it was not appropriate to use parametric ANOVA because of unequal n s and homogeneity of variance assumption violation. Instead, analyze the data with the Kruskal-Wallis test.   H obt = _________ .

Accepted Answer

A)  10.25 
B)  10.63 
C)  15.96 
D)  5.96 
A)  10.25 
B)  10.63 
C)  15.96 
D)  5.96

Question 6

In most situations, parametric tests _________.

Accepted Answer

A)  have the same power as nonparametric tests 
B)  are less powerful than nonparametric tests 
C)  are more powerful than nonparametric tests 
D)  are less sensitive than nonparametric tests 
E)  are less powerful than nonparametric tests and are less sensitive than nonparametric tests 
A)  have the same power as nonparametric tests 
B)  are less powerful than nonparametric tests 
C)  are more powerful than nonparametric tests 
D)  are less sensitive than nonparametric tests 
E)  are less powerful than nonparametric tests and are less sensitive than nonparametric tests

Question 7

In Chapter 16, we presented the data from an independent groups design and asked if it was appropriate to use parametric ANOVA. The data are presented again below. The correct answer was that it was not appropriate to use parametric ANOVA because of unequal n s and homogeneity of variance assumption violation. Instead, analyze the data with the Kruskal-Wallis test.   Using a = 0.05, H crit = _________.

Accepted Answer

A)  3.841 
B)  7.815 
C)  5.991 
D)  7.824 
A)  3.841 
B)  7.815 
C)  5.991 
D)  7.824

Question 8

The Mann-Whitney U test is used with a repeated measures design.

Accepted Answer

A) True 
 B)False

Question 9

U obt and U' obt yield the same information with regard to the degree of separation.

Accepted Answer

A) True 
 B)False

Question 10

U + U' equals _________.

Accepted Answer

A)  n 
B)  n 1 + n 2 
C)  n 1 x n 2 
D)  none of these 
A)  n 
B)  n 1 + n 2 
C)  n 1 x n 2 
D)  none of these

Question 11

If there are 16 subjects in a repeated measures design then the sum of the unsigned ranks equals _________.

Accepted Answer

A)  136 
B)  68 
C)  272 
D)  32 
A)  136 
B)  68 
C)  272 
D)  32

Question 12

A researcher conducts a one-way ANOVA involving three groups. When she analyzes the data she realizes the data seriously violate the assumptions underlying parametric ANOVA. Therefore, she decides to use the Kruskal-Wallis test to conclude with regard to H 0. The data are given below.   H obt = _________.

Accepted Answer

A)  4.25 
B)  5.43 
C)  2.68 
D)  6.86 
A)  4.25 
B)  5.43 
C)  2.68 
D)  6.86

Question 13

In order to reject the null hypothesis, c 2obt ≥ c 2crit .

Accepted Answer

A) True 
 B)False

Question 14

Define degree of separation.

Accepted Answer

The term "degree of separation" refers t

Question 15

The Wilcoxin signed ranks test is more powerful than the t test for correlated groups.

Accepted Answer

A) True 
 B)False

Question 16

A psychologist wants to investigate whether there might be a relationship between birth complications and the development of schizophrenia. In a longitudinal study she gathers the following data.

Accepted Answer

The answer of A psychologist wants to investigate whether there...

Question 17

When might we use a nonparametric test? Give an example?

Accepted Answer

Nonparametric tests are statistical meth

Question 18

When using the Wilcoxin signed ranks test, if the raw scores are tied, the scores are disregarded and N is reduced by 1.

Accepted Answer

A) True 
 B)False

Question 19

For the following table there is(are) _________ degrees of freedom.   The value of c 2obt for the table is _________.

Accepted Answer

A)  47.43 
B)  17.96 
C)  4.07 
D)  9.71 
A)  47.43 
B)  17.96 
C)  4.07 
D)  9.71

Question 20

If n 1 = 6, n 2 = 8 and a = 0.05 2 tail , U crit value is _________.

Accepted Answer

A)  8 
B)  40 
C)  6 
D)  42 
A)  8 
B)  40 
C)  6 
D)  42

The Mann-Whitney U test tests the difference between sample means.

To compute c 2 , the entries in the contingency table should be _________.

A social scientist wants to know if education and socioeconomic status (SES) are independent. He collects the following data. What do you conclude using a = 0.05?

In most situations, parametric tests _________.

The Mann-Whitney U test is used with a repeated measures design.

U obt and U' obt yield the same information with regard to the degree of separation.

U + U' equals _________.

If there are 16 subjects in a repeated measures design then the sum of the unsigned ranks equals _________.

In order to reject the null hypothesis, c _2obt ≥ c _2crit .

Define degree of separation.

The Wilcoxin signed ranks test is more powerful than the t test for correlated groups.

A psychologist wants to investigate whether there might be a relationship between birth complications and the development of schizophrenia. In a longitudinal study she gathers the following data.

When might we use a nonparametric test? Give an example?

When using the Wilcoxin signed ranks test, if the raw scores are tied, the scores are disregarded and N is reduced by 1.

For the following table there is(are) _ degrees of freedom. The value of c 2obt for the table is _.

If n 1 = 6, n 2 = 8 and a = 0.05 2 tail , U crit value is _________.

Statistics and Scientific Method

Basic Mathematical and Measurement Concepts

Frequency Distributions

Measures of Central Tendency and Variability

The Normal Curve and Standard Scores

Correlation

Linear Regression

Random Sampling and Probability

Binomial Distribution

Introduction to Hypothesis Testing: Using the Sign Test

Power

Sampling Distributions, Sampling Distribution of the Mean: the Normal Deviate Z Test

Students T Test for Single Samples

Students T Test for Correlated and Independent Groups

Introduction to the Analysis of Variance

Introduction to the Two-Way Analysis of Variance

Filters

Exam 17: Chi-Square and Other Nonparametric Tests

The Mann-Whitney U test tests the difference between sample means.

To compute c 2 , the entries in the contingency table should be _________.

A social scientist wants to know if education and socioeconomic status (SES) are independent. He collects the following data. What do you conclude using a = 0.05?

In most situations, parametric tests _________.

The Mann-Whitney U test is used with a repeated measures design.

U obt and U' obt yield the same information with regard to the degree of separation.

U + U' equals _________.

If there are 16 subjects in a repeated measures design then the sum of the unsigned ranks equals _________.

In order to reject the null hypothesis, c 2obt ≥ c 2crit .

Define degree of separation.

The Wilcoxin signed ranks test is more powerful than the t test for correlated groups.

A psychologist wants to investigate whether there might be a relationship between birth complications and the development of schizophrenia. In a longitudinal study she gathers the following data.

When might we use a nonparametric test? Give an example?

When using the Wilcoxin signed ranks test, if the raw scores are tied, the scores are disregarded and N is reduced by 1.

For the following table there is(are) _________ degrees of freedom. The value of c 2obt for the table is _________.

If n 1 = 6, n 2 = 8 and a = 0.05 2 tail , U crit value is _________.

Statistics and Scientific Method

Basic Mathematical and Measurement Concepts

Frequency Distributions

Measures of Central Tendency and Variability

The Normal Curve and Standard Scores

Correlation

Linear Regression

Random Sampling and Probability

Binomial Distribution

Introduction to Hypothesis Testing: Using the Sign Test

Power

Sampling Distributions, Sampling Distribution of the Mean: the Normal Deviate Z Test

Students T Test for Single Samples

Students T Test for Correlated and Independent Groups

Introduction to the Analysis of Variance

Introduction to the Two-Way Analysis of Variance

Filters

In order to reject the null hypothesis, c _2obt ≥ c _2crit .

For the following table there is(are) _ degrees of freedom. The value of c 2obt for the table is _.