Question 1

Which of the following is the best interpretation of a significant Somers' d with a value of .30?

Accepted Answer

A)  9% of the variance in the dependent variable is explained 
B)  9% of the variance in the independent variable is explained 
C)  15% of the variance in the independent variable is explained 
D)  30% of the variance in the dependent variable is explained 
A)  9% of the variance in the dependent variable is explained 
B)  9% of the variance in the independent variable is explained 
C)  15% of the variance in the independent variable is explained 
D)  30% of the variance in the dependent variable is explained D

Question 2

A significant Lambda value of .20 is best interpreted as:

Accepted Answer

A)  4% of the variance in the dependent variable is explained 
B)  4% of the variance in the independent variable is explained 
C)  10% of the variance in the independent variable is explained 
D)  20% of the variance in the dependent variable is explained 
A)  4% of the variance in the dependent variable is explained 
B)  4% of the variance in the independent variable is explained 
C)  10% of the variance in the independent variable is explained 
D)  20% of the variance in the dependent variable is explained D

Question 3

Two basic questions help to determine which group of nonparametric tests to use; they are:

Accepted Answer

A)  are the data nominal or ordinal and are they distributed normally or not 
B)  are the data nominal or ordinal and how many groups are being compared 
C)  are the data distributed normally and are they they from related or independent data 
D)  how many groups are being compared and are they from related or independent data 
A)  are the data nominal or ordinal and are they distributed normally or not 
B)  are the data nominal or ordinal and how many groups are being compared 
C)  are the data distributed normally and are they they from related or independent data 
D)  how many groups are being compared and are they from related or independent data D

Question 4

If a curve is negatively skewed:

Accepted Answer

A)  the longest tail extends to the left 
B)  the data are normally distributed 
C)  the middle is not as high as a normal curve 
D)  the middle is higher than a normal curve 
A)  the longest tail extends to the left 
B)  the data are normally distributed 
C)  the middle is not as high as a normal curve 
D)  the middle is higher than a normal curve

Question 5

If a curve is positively skewed, its mode, median and mean should appear in this order:

Accepted Answer

A)  the mean falls to the left of the mode and the mode falls to the right of the median 
B)  the median falls to the left of the mode and the mean falls to the left of the median 
C)  the median falls to the right of the mode and the mean falls to the right of the median 
D)  none of the above 
A)  the mean falls to the left of the mode and the mode falls to the right of the median 
B)  the median falls to the left of the mode and the mean falls to the left of the median 
C)  the median falls to the right of the mode and the mean falls to the right of the median 
D)  none of the above

Question 6

While the Gamma statistic has other problems, which of the answers below is an advantage of Gamma:

Accepted Answer

A)  expressly designed for 2 X 2 tables 
B)  it uses interval level data 
C)  it calculates asymmetric relationships 
D)  it has a PRE interpretation 
A)  expressly designed for 2 X 2 tables 
B)  it uses interval level data 
C)  it calculates asymmetric relationships 
D)  it has a PRE interpretation

Question 7

In general, ordinal measures of association tend to provide an inaccurate estimate of the real relationship when:

Accepted Answer

A)  the sample size is very large 
B)  the data are measured at the ordinal level 
C)  there are many ties in the data 
D)  all of the above 
A)  the sample size is very large 
B)  the data are measured at the ordinal level 
C)  there are many ties in the data 
D)  all of the above

Question 8

A kurtosis score of -.90 suggests that the data have a:

Accepted Answer

A)  a distribution that is extended toward the low tail of a normal curve 
B)  less than 90 percent chance of being below the mean 
C)  a distribution that can be treated as normal 
D)  lower probability of occurrence than a score of +.90 
A)  a distribution that is extended toward the low tail of a normal curve 
B)  less than 90 percent chance of being below the mean 
C)  a distribution that can be treated as normal 
D)  lower probability of occurrence than a score of +.90

Question 9

The concept of homoscedasticity, as it applies to multiple comparison tests is

Accepted Answer

A)  equality of marginals totals 
B)  equality of group sizes 
C)  group kurtosis levels are equal 
D)  none of the above 
A)  equality of marginals totals 
B)  equality of group sizes 
C)  group kurtosis levels are equal 
D)  none of the above

Question 10

In order to make a basic choice of which type of multiple comparison test can be used, you need to

Accepted Answer

A)  determine the sample size used in the data set 
B)  test for equality of variances 
C)  calculate the analysis of variance test first 
D)  examine the marginal totals for equality 
A)  determine the sample size used in the data set 
B)  test for equality of variances 
C)  calculate the analysis of variance test first 
D)  examine the marginal totals for equality

Question 11

A box plot is a ____________ statistic.

Accepted Answer

A)  univariate 
B)  nominal-level 
C)  parametric 
D)  none of the above 
A)  univariate 
B)  nominal-level 
C)  parametric 
D)  none of the above

Question 12

Somers' d is actually created from another statistic; that statistic is:

Accepted Answer

A)  Pearson's r 
B)  Gamma 
C)  Uncertainty Coefficient (U) 
D)  Phi 
A)  Pearson's r 
B)  Gamma 
C)  Uncertainty Coefficient (U) 
D)  Phi

Question 13

The Uncertainty Coefficient has which advantages below?

Accepted Answer

A)  it focuses on the odds of one case being in the marginals, rather than the number of cells 
B)  there are multiple versions of the statistic for both nominal and ordinal level data 
C)  there are symmetric and asymmetric versions 
D)  none of the above 
A)  it focuses on the odds of one case being in the marginals, rather than the number of cells 
B)  there are multiple versions of the statistic for both nominal and ordinal level data 
C)  there are symmetric and asymmetric versions 
D)  none of the above

Question 14

The Mann-Whitney U statistic is a nonparametric alternative to which statistic below?

Accepted Answer

A)  Pearson's r 
B)  Somers' d 
C)  t-test 
D)  Fisher's Exact Test 
A)  Pearson's r 
B)  Somers' d 
C)  t-test 
D)  Fisher's Exact Test

Question 15

The Kruskal-Wallis H test is a nonparametric alternative to which statistic below?

Accepted Answer

A)  Partial regression 
B)  Uncertainty Coefficient 
C)  Spearman's Rho 
D)  Analysis of variance 
A)  Partial regression 
B)  Uncertainty Coefficient 
C)  Spearman's Rho 
D)  Analysis of variance

Question 16

The lower hinge in a box plot represents

Accepted Answer

A)  the middle of the data 
B)  the 25th percentile 
C)  10% of the lowest scores 
D)  the lowest extreme score 
A)  the middle of the data 
B)  the 25th percentile 
C)  10% of the lowest scores 
D)  the lowest extreme score

Question 17

The five basic elements of a box plot include which of the items below?

Accepted Answer

A)  the medians 
B)  the middle hinges 
C)  the whisker hinges 
D)  all of the above 
A)  the medians 
B)  the middle hinges 
C)  the whisker hinges 
D)  all of the above

Question 18

An appropriate measure for determining the strength of the relationship between religious affiliation (Protestant, Catholic, Jewish, Other) and gender (Male, female) is:

Accepted Answer

A)  Phi 
B)  Uncertainty Coefficient (U) 
C)  Chi-square 
D)  t-test 
A)  Phi 
B)  Uncertainty Coefficient (U) 
C)  Chi-square 
D)  t-test

Question 19

Lambda has a major problem. Which of the answers below best represents that problem?

Accepted Answer

A)  it will underestimate the association present in a table if marginals are substantially unequal 
B)  it will overestimate the association present in a table if marginals are substantially unequal 
C)  it will become more sensitive when cases in a table are equally distributed 
D)  it can provide a zero result when probability estimates are above .05 
A)  it will underestimate the association present in a table if marginals are substantially unequal 
B)  it will overestimate the association present in a table if marginals are substantially unequal 
C)  it will become more sensitive when cases in a table are equally distributed 
D)  it can provide a zero result when probability estimates are above .05

Question 20

Multiple comparison tests are also known as

Accepted Answer

A)  post hoc tests 
B)  a priori tests 
C)  multi-group tests 
D)  all of the above 
A)  post hoc tests 
B)  a priori tests 
C)  multi-group tests 
D)  all of the above

Which of the following is the best interpretation of a significant Somers' d with a value of .30?

A significant Lambda value of .20 is best interpreted as:

Two basic questions help to determine which group of nonparametric tests to use; they are:

If a curve is negatively skewed:

If a curve is positively skewed, its mode, median and mean should appear in this order:

While the Gamma statistic has other problems, which of the answers below is an advantage of Gamma:

In general, ordinal measures of association tend to provide an inaccurate estimate of the real relationship when:

A kurtosis score of -.90 suggests that the data have a:

The concept of homoscedasticity, as it applies to multiple comparison tests is

In order to make a basic choice of which type of multiple comparison test can be used, you need to

A box plot is a ____________ statistic.

Somers' d is actually created from another statistic; that statistic is:

The Uncertainty Coefficient has which advantages below?

The Mann-Whitney U statistic is a nonparametric alternative to which statistic below?

The Kruskal-Wallis H test is a nonparametric alternative to which statistic below?

The lower hinge in a box plot represents

The five basic elements of a box plot include which of the items below?

An appropriate measure for determining the strength of the relationship between religious affiliation (Protestant, Catholic, Jewish, Other) and gender (Male, female) is:

Lambda has a major problem. Which of the answers below best represents that problem?

Multiple comparison tests are also known as

Introduction to Statistics

Levels of Measurement

Graphical Statistics

Measures of Central Tendency

Measures of Dispersion

Curves and Distributions

Frequency Distributions

Elementary Relationships: Crosstabulation Tables

Hypotheses and Sampling Distributions

Statistical Significance

Testing for Significance: the Chi-Square Test

Testing for Significance in Two Groups: The T-Test

Testing for Significance in Multiple Groups: The Analysis of Variance Statistic

The Concept of Association

Testing for Association: Phi

Testing for Association: Pearsons R and Regression

Doing Real Research: Elementary Multivariate Relationships

Filters

Exam 18: Statistics and Data Analysis

Which of the following is the best interpretation of a significant Somers' d with a value of .30?

A significant Lambda value of .20 is best interpreted as:

Two basic questions help to determine which group of nonparametric tests to use; they are:

If a curve is negatively skewed:

If a curve is positively skewed, its mode, median and mean should appear in this order:

While the Gamma statistic has other problems, which of the answers below is an advantage of Gamma:

In general, ordinal measures of association tend to provide an inaccurate estimate of the real relationship when:

A kurtosis score of -.90 suggests that the data have a:

The concept of homoscedasticity, as it applies to multiple comparison tests is

In order to make a basic choice of which type of multiple comparison test can be used, you need to

A box plot is a ____________ statistic.

Somers' d is actually created from another statistic; that statistic is:

The Uncertainty Coefficient has which advantages below?

The Mann-Whitney U statistic is a nonparametric alternative to which statistic below?

The Kruskal-Wallis H test is a nonparametric alternative to which statistic below?

The lower hinge in a box plot represents

The five basic elements of a box plot include which of the items below?

An appropriate measure for determining the strength of the relationship between religious affiliation (Protestant, Catholic, Jewish, Other) and gender (Male, female) is:

Lambda has a major problem. Which of the answers below best represents that problem?

Multiple comparison tests are also known as

Introduction to Statistics

Levels of Measurement

Graphical Statistics

Measures of Central Tendency

Measures of Dispersion

Curves and Distributions

Frequency Distributions

Elementary Relationships: Crosstabulation Tables

Hypotheses and Sampling Distributions

Statistical Significance

Testing for Significance: the Chi-Square Test

Testing for Significance in Two Groups: The T-Test

Testing for Significance in Multiple Groups: The Analysis of Variance Statistic

The Concept of Association

Testing for Association: Phi

Testing for Association: Pearsons R and Regression

Doing Real Research: Elementary Multivariate Relationships

Filters