Question 1

McNemar's test is:

Accepted Answer

A) A parametric method used on nominal data. 
B) Assesses the significance of the difference between two independent samples when the variable of interest is dichotomous. 
C) Is used primarily in before-after studies to test for an experimental effect. 
D) All of the above. 
A) A parametric method used on nominal data. 
B) Assesses the significance of the difference between two independent samples when the variable of interest is dichotomous. 
C) Is used primarily in before-after studies to test for an experimental effect. 
D) All of the above. C

Question 2

We have a multicollinearity problem if our VIF values are higher than 10.

Accepted Answer

A) True 
 B)False  True

Question 3

What is the most appropriate technique to test the hypothesis that the performance of employees depends on the reward they receive,because this reward increases their motivation (all variables are measured on a 5-point Likert scale)?

Accepted Answer

A) Multiple regression with an interaction effect. 
B) Multiple regression with dummy variables. 
C) Three multiple regression models so that mediation can be tested. 
D) Simple regression. 
A) Multiple regression with an interaction effect. 
B) Multiple regression with dummy variables. 
C) Three multiple regression models so that mediation can be tested. 
D) Simple regression. C

Question 4

Statistical power depends on:

Accepted Answer

A) Alpha ($\alpha$),effect size,and the size of the sample. 
B) Alpha ($\alpha$),beta ($\beta$),and the size of the sample. 
C) Alpha ($\alpha$),beta ($\beta$),and effect size. 
D) Beta ($\beta$),effect size,and the size of the sample. 
A) Alpha ($\alpha$),effect size,and the size of the sample. 
B) Alpha ($\alpha$),beta ($\beta$),and the size of the sample. 
C) Alpha ($\alpha$),beta ($\beta$),and effect size. 
D) Beta ($\beta$),effect size,and the size of the sample.

Question 5

The VIF value is the inverse of the tolerance value.

Accepted Answer

A) True 
 B)False

Question 6

The statistical null hypothesis is rejected when the p-value is small enough.

Accepted Answer

A) True 
 B)False

Question 7

To be able to conduct a t-test it is important:

Accepted Answer

A) That the independent as well as the dependent variable is measured on a nominal or ordinal scale. 
B) That the independent variable is measured on an interval or ratio scale and the dependent variable is measured on a nominal or ordinal scale. 
C) That the independent as well as the dependent variable is measured on an interval or ratio scale. 
D) That the dependent variable is measured on an interval or ratio scale and the independent variable is measured on a nominal or ordinal scale. 
A) That the independent as well as the dependent variable is measured on a nominal or ordinal scale. 
B) That the independent variable is measured on an interval or ratio scale and the dependent variable is measured on a nominal or ordinal scale. 
C) That the independent as well as the dependent variable is measured on an interval or ratio scale. 
D) That the dependent variable is measured on an interval or ratio scale and the independent variable is measured on a nominal or ordinal scale.

Question 8

A researcher wants to know if the distribution of income in his sample corresponds to the real distribution in his population (60% = above the standard).The most appropriate technique to test this is:

Accepted Answer

A) An independent samples t-test. 
B) ANOVA 
C) A paired-samples t-test. 
D) A Chi-square test. 
A) An independent samples t-test. 
B) ANOVA 
C) A paired-samples t-test. 
D) A Chi-square test.

Question 9

Multicollinearity occurs when any single independent variable is highly correlated with a set of other independent variables.

Accepted Answer

A) True 
 B)False

Question 10

The most appropriate technique to test the hypothesis that the quality of tangible elements (measured on ratio-level)influences satisfaction on the University restaurant (measured on ration-level),but that the relationship between these variables differs between students and scientific employees is …?

Accepted Answer

A) Multiple regression analysis with an interaction-effect. 
B) ANOVA. 
C) Three multiple regression models so that mediation can be tested. 
D) MANOVA. 
A) Multiple regression analysis with an interaction-effect. 
B) ANOVA. 
C) Three multiple regression models so that mediation can be tested. 
D) MANOVA.

Question 11

Partial mediation exists when an independent variable influences the dependent variable both directly and indirectly.

Accepted Answer

A) True 
 B)False

Question 12

The one sample t-test is used to test the hypothesis that the mean of the population from which a sample is drawn is equal to a comparison standard.

Accepted Answer

A) True 
 B)False

Question 13

Statistical power or power is the probability of correctly rejecting the null hypothesis.

Accepted Answer

A) True 
 B)False

Question 14

What is the most appropriate technique to test the hypothesis that the number of Bacardi Breezers drunk by men is smaller than the number of Bacardi Breezers drunk by women?

Accepted Answer

A) An independent samples t-test. 
B) A one sample t-test. 
C) A paired samples t-test. 
D) ANOVA. 
A) An independent samples t-test. 
B) A one sample t-test. 
C) A paired samples t-test. 
D) ANOVA.

Question 15

Which of the following alternatives is possibly the dependent (or Y)variable in a study in which regression analysis is used to analyze the data?

Accepted Answer

A) Political party. 
B) Gender. 
C) Favorite soccer team. 
D) Disposable income of the respondent. 
A) Political party. 
B) Gender. 
C) Favorite soccer team. 
D) Disposable income of the respondent.

Question 16

ANOVA is used to determine if the variance between groups significantly differ from each other.

Accepted Answer

A) True 
 B)False

Question 17

MANOVA is similar to ANOVA,with the difference that MANOVA is able to handle:

Accepted Answer

A) More than one independent variable. 
B) More than one dependent variable. 
C) More respondents. 
D) Multicollinearity. 
A) More than one independent variable. 
B) More than one dependent variable. 
C) More respondents. 
D) Multicollinearity.

Question 18

Whereas the (independent samples)t-test would indicate whether or not there is a signiﬁcant mean difference in a dependent variable between two groups,an analysis of variance (ANOVA)helps to examine the signiﬁcant mean differences among more than two groups on an interval or ratio-scaled dependent variable.

Accepted Answer

A) True 
 B)False

Question 19

Multicollinearity is not a serious problem if the purpose of the study is to predict or forecast future values of the dependent variable.

Accepted Answer

A) True 
 B)False

Question 20

A paired samples t-test is used to examine the differences in the same group before and after a treatment.

Accepted Answer

A) True 
 B)False

McNemar's test is:

We have a multicollinearity problem if our VIF values are higher than 10.

What is the most appropriate technique to test the hypothesis that the performance of employees depends on the reward they receive,because this reward increases their motivation (all variables are measured on a 5-point Likert scale)?

Statistical power depends on:

The VIF value is the inverse of the tolerance value.

The statistical null hypothesis is rejected when the p-value is small enough.

To be able to conduct a t-test it is important:

A researcher wants to know if the distribution of income in his sample corresponds to the real distribution in his population (60% < the standard,40% >= above the standard).The most appropriate technique to test this is:

Multicollinearity occurs when any single independent variable is highly correlated with a set of other independent variables.

Partial mediation exists when an independent variable influences the dependent variable both directly and indirectly.

The one sample t-test is used to test the hypothesis that the mean of the population from which a sample is drawn is equal to a comparison standard.

Statistical power or power is the probability of correctly rejecting the null hypothesis.

What is the most appropriate technique to test the hypothesis that the number of Bacardi Breezers drunk by men is smaller than the number of Bacardi Breezers drunk by women?

Which of the following alternatives is possibly the dependent (or Y)variable in a study in which regression analysis is used to analyze the data?

ANOVA is used to determine if the variance between groups significantly differ from each other.

MANOVA is similar to ANOVA,with the difference that MANOVA is able to handle:

Multicollinearity is not a serious problem if the purpose of the study is to predict or forecast future values of the dependent variable.

A paired samples t-test is used to examine the differences in the same group before and after a treatment.

Introduction to Research

Scientific Investigation

The Research Process: the Broad Problem Area and Defining the Problem Statement

The Research Process: Theoretical Framework and Hypothesis Design

The Research Process: Elements of Research Design

Measurement of Variables: Operational Definition

Measurement: Scaling,reliability,validity

Data Collection Methods

Experimental Designs

Sampling

Quantitative Data Analysis

Qualitative Data Analysis

The Research Report

Filters

Exam 12: Quantitative Data Analysis Part 2: Hypothesis Testing

McNemar's test is:

We have a multicollinearity problem if our VIF values are higher than 10.

What is the most appropriate technique to test the hypothesis that the performance of employees depends on the reward they receive,because this reward increases their motivation (all variables are measured on a 5-point Likert scale)?

Statistical power depends on:

The VIF value is the inverse of the tolerance value.

The statistical null hypothesis is rejected when the p-value is small enough.

To be able to conduct a t-test it is important:

A researcher wants to know if the distribution of income in his sample corresponds to the real distribution in his population (60% < the standard,40% >= above the standard).The most appropriate technique to test this is:

Multicollinearity occurs when any single independent variable is highly correlated with a set of other independent variables.

Partial mediation exists when an independent variable influences the dependent variable both directly and indirectly.

The one sample t-test is used to test the hypothesis that the mean of the population from which a sample is drawn is equal to a comparison standard.

Statistical power or power is the probability of correctly rejecting the null hypothesis.

What is the most appropriate technique to test the hypothesis that the number of Bacardi Breezers drunk by men is smaller than the number of Bacardi Breezers drunk by women?

Which of the following alternatives is possibly the dependent (or Y)variable in a study in which regression analysis is used to analyze the data?

ANOVA is used to determine if the variance between groups significantly differ from each other.

MANOVA is similar to ANOVA,with the difference that MANOVA is able to handle:

Multicollinearity is not a serious problem if the purpose of the study is to predict or forecast future values of the dependent variable.

A paired samples t-test is used to examine the differences in the same group before and after a treatment.

Introduction to Research

Scientific Investigation

The Research Process: the Broad Problem Area and Defining the Problem Statement

The Research Process: Theoretical Framework and Hypothesis Design

The Research Process: Elements of Research Design

Measurement of Variables: Operational Definition

Measurement: Scaling,reliability,validity

Data Collection Methods

Experimental Designs

Sampling

Quantitative Data Analysis

Qualitative Data Analysis

The Research Report

Filters