Question 1

Suppose we are trying to understand the effect of maternal smoking on the birthweight of newborn babies. Which of the following is not a likely source of endogeneity?

Accepted Answer

A)  Mother's health consciousness 
B)  Tax rates on cigarettes 
C)  Mother's education 
D)  Father's smoking habits 
A)  Mother's health consciousness 
B)  Tax rates on cigarettes 
C)  Mother's education 
D)  Father's smoking habits B

Question 2

Yi=B0+10X1i+ei, a 10 unit increase in X1 is expected to lead to a 1 unit increase in Y.

Accepted Answer

A) True 
 B)False  False

Question 3

Assume that we are looking at the effect of education on wages, which of the following factors could most likely lead to endogeneity?

Accepted Answer

A)  Height 
B)  Religion 
C)  Number of siblings 
D)  Intelligence 
A)  Height 
B)  Religion 
C)  Number of siblings 
D)  Intelligence D

Question 4

Given Incomei = 10 + 1.5Agei + ei, interpret the model

Accepted Answer

A)  A one year increase in age is expected to lead to a 1.5 increase in income 
B)  A 1.5 increase in age is expected to lead to a 1 increase in income 
C)  A 1.5 increase in income is expected to lead to a 1 unit increase in age 
D)  Income is 10 
A)  A one year increase in age is expected to lead to a 1.5 increase in income 
B)  A 1.5 increase in age is expected to lead to a 1 increase in income 
C)  A 1.5 increase in income is expected to lead to a 1 unit increase in age 
D)  Income is 10

Question 5

List and explain the three fundamental challenges in statistics.

Accepted Answer

The answer of List and explain the three fundamental challenges...

Question 6

The dependent variable is the outcome of interest.

Accepted Answer

A) True 
 B)False

Question 7

What is the goal of a randomized experiment?

Accepted Answer

A)  To create exogeneity. 
B)  To create endogeneity. 
C)  To deal with problems of external validity. 
D)  To increase sample size. 
A)  To create exogeneity. 
B)  To create endogeneity. 
C)  To deal with problems of external validity. 
D)  To increase sample size.

Question 8

Imagine that you are looking at the relationship between political affiliation and religion, list some of the factors that could lead to endogeneity.

Accepted Answer

The answer of Imagine that you are looking at the...

Question 9

The error term

Accepted Answer

A)  Contains all other factors that affect the dependent variable. 
B)  Contains all other factors that affect the independent variable. 
C)  Contains all other factors that affect the intercept. 
D)  Is a random variable with no relation to other variables. 
A)  Contains all other factors that affect the dependent variable. 
B)  Contains all other factors that affect the independent variable. 
C)  Contains all other factors that affect the intercept. 
D)  Is a random variable with no relation to other variables.

Question 10

What is internal and external validity?

Accepted Answer

The answer of What is internal and external validity?...

Question 11

Imagine that you are looking at the relationship between income and level of education, list some of the factors that could lead to endogeneity.

Accepted Answer

The answer of Imagine that you are looking at the...

Question 12

X1 is the slope coefficient in the following model Yi = B0 + B1X1i + ei.

Accepted Answer

A) True 
 B)False

Question 13

Describe the basic process behind an experiment.

Accepted Answer

The answer of Describe the basic process behind an experiment....

Question 14

In randomized experiments we determine the value of the dependent variable via a random process.

Accepted Answer

A) True 
 B)False

Question 15

An independent variable is endogenous if changes in it are related to factors in the error term.

Accepted Answer

A) True 
 B)False

Question 16

Assume that we trying to explain infant mortality as a function of GDP per capita in a sample of countries from around the world. Which of the following factors could most likely lead to endogeneity?

Accepted Answer

A)  Whether the country has been at war 
B)  Population size 
C)  (Geographic) size of country 
D)  Use of proportional representation system 
A)  Whether the country has been at war 
B)  Population size 
C)  (Geographic) size of country 
D)  Use of proportional representation system

Question 17

Which of the following are fundamental challenges when trying to infer relationships from data?

Accepted Answer

A)  Exogeneity 
B)  Endogeneity 
C)  Correlation 
D)  Math 
A)  Exogeneity 
B)  Endogeneity 
C)  Correlation 
D)  Math

Question 18

Given GPAi=1.0+0.001SATi+ei what is the expected GPA of someone with an SAT score of 2000

Accepted Answer

A)  1.0 
B)  1.001 
C)  2000 
D)  3.0 
A)  1.0 
B)  1.001 
C)  2000 
D)  3.0

Suppose we are trying to understand the effect of maternal smoking on the birthweight of newborn babies. Which of the following is not a likely source of endogeneity?

Y_i=B₀+10X_1i+e_i, a 10 unit increase in X1 is expected to lead to a 1 unit increase in Y.

Assume that we are looking at the effect of education on wages, which of the following factors could most likely lead to endogeneity?

Given Income_i= 10 + 1.5Age_i+ e_i, interpret the model

List and explain the three fundamental challenges in statistics.

The dependent variable is the outcome of interest.

What is the goal of a randomized experiment?

Imagine that you are looking at the relationship between political affiliation and religion, list some of the factors that could lead to endogeneity.

The error term

What is internal and external validity?

Imagine that you are looking at the relationship between income and level of education, list some of the factors that could lead to endogeneity.

X1 is the slope coefficient in the following model Y_i= B₀+ B₁X_1i+ e_i.

Describe the basic process behind an experiment.

In randomized experiments we determine the value of the dependent variable via a random process.

An independent variable is endogenous if changes in it are related to factors in the error term.

Assume that we trying to explain infant mortality as a function of GDP per capita in a sample of countries from around the world. Which of the following factors could most likely lead to endogeneity?

Which of the following are fundamental challenges when trying to infer relationships from data?

Given GPA_i=1.0+0.001SAT_i+e_iwhat is the expected GPA of someone with an SAT score of 2000

Stats in the Wild: Good Data Practices

Bivariate Ols: the Foundation of Econometric Analysis

Hypothesis Testing and Interval Estimation: Answering Research Questions

Multivariate Ols: Where the Action Is

Dummy Variables: Smarter Than You Think

Specifying Models

Using Fixed Effects to Fight Endogeneity in Panel Data and Difference-In-Difference Models

Instrumental Variables: Using Exogenous Variation to Fight Endogeneity

Experiments: Dealing With Real-World Challenges

Regression Discontinuity: Looking for Jumps in Data

Dummy Dependent Variables

Time Series: Dealing With Stickiness Over Time

Advanced Ols

Advanced Panel Data

Filters

Exam 1: The Quest for Causality

Suppose we are trying to understand the effect of maternal smoking on the birthweight of newborn babies. Which of the following is not a likely source of endogeneity?

Yi=B0+10X1i+ei, a 10 unit increase in X1 is expected to lead to a 1 unit increase in Y.

Assume that we are looking at the effect of education on wages, which of the following factors could most likely lead to endogeneity?

Given Incomei = 10 + 1.5Agei + ei, interpret the model

List and explain the three fundamental challenges in statistics.

The dependent variable is the outcome of interest.

What is the goal of a randomized experiment?

Imagine that you are looking at the relationship between political affiliation and religion, list some of the factors that could lead to endogeneity.

The error term

What is internal and external validity?

Imagine that you are looking at the relationship between income and level of education, list some of the factors that could lead to endogeneity.

X1 is the slope coefficient in the following model Yi = B0 + B1X1i + ei.

Describe the basic process behind an experiment.

In randomized experiments we determine the value of the dependent variable via a random process.

An independent variable is endogenous if changes in it are related to factors in the error term.

Assume that we trying to explain infant mortality as a function of GDP per capita in a sample of countries from around the world. Which of the following factors could most likely lead to endogeneity?

Which of the following are fundamental challenges when trying to infer relationships from data?

Given GPAi=1.0+0.001SATi+ei what is the expected GPA of someone with an SAT score of 2000

Stats in the Wild: Good Data Practices

Bivariate Ols: the Foundation of Econometric Analysis

Hypothesis Testing and Interval Estimation: Answering Research Questions

Multivariate Ols: Where the Action Is

Dummy Variables: Smarter Than You Think

Specifying Models

Using Fixed Effects to Fight Endogeneity in Panel Data and Difference-In-Difference Models

Instrumental Variables: Using Exogenous Variation to Fight Endogeneity

Experiments: Dealing With Real-World Challenges

Regression Discontinuity: Looking for Jumps in Data

Dummy Dependent Variables

Time Series: Dealing With Stickiness Over Time

Advanced Ols

Advanced Panel Data

Filters

Y_i=B₀+10X_1i+e_i, a 10 unit increase in X1 is expected to lead to a 1 unit increase in Y.

Given Income_i= 10 + 1.5Age_i+ e_i, interpret the model

X1 is the slope coefficient in the following model Y_i= B₀+ B₁X_1i+ e_i.

Given GPA_i=1.0+0.001SAT_i+e_iwhat is the expected GPA of someone with an SAT score of 2000