Question 1

The Heckman model can be thought of in terms of two equations: a "selection model" and a "prediction model."

Accepted Answer

A) True 
 B)False

Question 2

Running a separate regression model for each person would yield the best results and effectively deal with heterogeneity.We do not do this for all of the following reasons except

Accepted Answer

A)  researchers don't ordinarily have many pieces of data for each individual 
B)  researchers are looking for a unified explanation of a phenomena 
C)  individuals tend to give the same answers anyway 
D)  it is expensive to prepare a separate marketing approach for each individual

Question 3

_______________ occurs when researchers pre-screen potential participants on an outcome variable.

Accepted Answer

A)  Self-selection 
B)  Ad hoc rejection 
C)  Unequal selection criteria 
D)  Drop-out bias

Question 4

If a sample is collected through a non-random means,it is likely to have a selection bias.

Accepted Answer

A) True 
 B)False

Question 5

The most common type of selection bias correction model used by researchers is the

Accepted Answer

A)  hierarchical Bayes model 
B)  fixed normal mixture model 
C)  Heckman model 
D)  bias estimation model

Question 6

One of the most important analytical advances in marketing research in recent years has been the advent of hierarchical models and Bayesian estimation.

Accepted Answer

A) True 
 B)False

Question 7

In terms of presenting the research results in the written paper,objectivity refers to the lack of bias while framing the results so as to make them palatable to management.

Accepted Answer

A) True 
 B)False

Question 8

In the Heckman model,if the selection model and the prediction model are estimated separately,the two errors remain uncorrelated,and selection bias is automatically controlled for.

Accepted Answer

A) True 
 B)False

Question 9

Generally speaking,selection biases are the most problematic when items are selected based on values of the outcome variables.

Accepted Answer

A) True 
 B)False

Question 10

Identify the 4 items that should be summarized in the executive summary section of a written research report.

Accepted Answer

The answer of Identify the 4 items that should be...

Question 11

All of the following are data-based selection biases except

Accepted Answer

A)  unequal selection criteria 
B)  ad hoc rejection 
C)  endpoint selection 
D)  premature termination

Question 12

The following results from the Application Case Study presented in the text show means for selection of movies (Selection Distribution) and how they were rated (Prediction Distribution). Refer to this table to answer the following questions.
Hierarchical Bayes Sample Selection Model for Movie Ratings Predictions
 
-Which type of movie is rated the highest?

Accepted Answer

A)  Action 
B)  Animation 
C)  Romance 
D)  Drama

Question 13

The problem of selection bias was long been recognized by statisticians as a problem until the introduction of the

Accepted Answer

A)  Markov chain Monte Carlo method 
B)  hierarchical Bayesian estimation method 
C)  latent heterogeneity model 
D)  Heckman model

Question 14

The coefficients of selection bias correction models will automatically correct for any selection bias if the

Accepted Answer

A)  selection model is estimated before the prediction model 
B)  prediction model is estimated before the selection model 
C)  the selection and prediction models are estimated jointly 
D)  population standard deviation is known

Question 15

In the equation $$Y _ { i } = \alpha _ { j } + \beta _ { j } X _ { j } + \varepsilon _ { j }$$ ,how do the various variables and coefficients relate to heterogeneity?

Accepted Answer

The answer of In the equation \[Y _ { i...

Question 16

What increasingly common web feature uses a Heckman model to correct of massive amounts of missing data,parameter heterogeneity,and Bayesian estimation methods?

Accepted Answer

The answer of What increasingly common web feature uses a...

Question 17

The following results from the Application Case Study presented in the text show means for selection of movies (Selection Distribution) and how they were rated (Prediction Distribution). Refer to this table to answer the following questions.
Hierarchical Bayes Sample Selection Model for Movie Ratings Predictions
 
-Which gender is less likely to select a movie?

Accepted Answer

A)  males 
B)  females 
C)  men and women are equally likely to select a movie 
D)  it cannot be determined from the given data

Question 18

To illustrate multiple comparisons and complex relationships,the best illustrative aid to use is

Accepted Answer

A)  pie charts 
B)  histograms 
C)  bar charts 
D)  tables

Question 19

With the Markov chain Monte Carlo method of estimating parameters,the process finds the best fit for each parameter before it moves on to the next parameter.

Accepted Answer

A) True 
 B)False

Question 20

Name the two main types of heterogeneity models.

Accepted Answer

The answer of Name the two main types of heterogeneity...

Exam 12: Advanced Topics, research Frontiers, and Preparing the Final Report

The Heckman model can be thought of in terms of two equations: a "selection model" and a "prediction model."

Running a separate regression model for each person would yield the best results and effectively deal with heterogeneity.We do not do this for all of the following reasons except

_______________ occurs when researchers pre-screen potential participants on an outcome variable.

If a sample is collected through a non-random means,it is likely to have a selection bias.

The most common type of selection bias correction model used by researchers is the

One of the most important analytical advances in marketing research in recent years has been the advent of hierarchical models and Bayesian estimation.

In terms of presenting the research results in the written paper,objectivity refers to the lack of bias while framing the results so as to make them palatable to management.

In the Heckman model,if the selection model and the prediction model are estimated separately,the two errors remain uncorrelated,and selection bias is automatically controlled for.

Generally speaking,selection biases are the most problematic when items are selected based on values of the outcome variables.

Identify the 4 items that should be summarized in the executive summary section of a written research report.

All of the following are data-based selection biases except

The problem of selection bias was long been recognized by statisticians as a problem until the introduction of the

The coefficients of selection bias correction models will automatically correct for any selection bias if the

In the equation $Y _ { i } = \alpha _ { j } + \beta _ { j } X _ { j } + \varepsilon _ { j }$ ,how do the various variables and coefficients relate to heterogeneity?

What increasingly common web feature uses a Heckman model to correct of massive amounts of missing data,parameter heterogeneity,and Bayesian estimation methods?

To illustrate multiple comparisons and complex relationships,the best illustrative aid to use is

With the Markov chain Monte Carlo method of estimating parameters,the process finds the best fit for each parameter before it moves on to the next parameter.

Name the two main types of heterogeneity models.

Exam 12: Advanced Topics, research Frontiers, and Preparing the Final Report

The Heckman model can be thought of in terms of two equations: a "selection model" and a "prediction model."

Running a separate regression model for each person would yield the best results and effectively deal with heterogeneity.We do not do this for all of the following reasons except

_______________ occurs when researchers pre-screen potential participants on an outcome variable.

If a sample is collected through a non-random means,it is likely to have a selection bias.

The most common type of selection bias correction model used by researchers is the

One of the most important analytical advances in marketing research in recent years has been the advent of hierarchical models and Bayesian estimation.

In terms of presenting the research results in the written paper,objectivity refers to the lack of bias while framing the results so as to make them palatable to management.

In the Heckman model,if the selection model and the prediction model are estimated separately,the two errors remain uncorrelated,and selection bias is automatically controlled for.

Generally speaking,selection biases are the most problematic when items are selected based on values of the outcome variables.

Identify the 4 items that should be summarized in the executive summary section of a written research report.

All of the following are data-based selection biases except

The problem of selection bias was long been recognized by statisticians as a problem until the introduction of the

The coefficients of selection bias correction models will automatically correct for any selection bias if the

In the equation Yi=αj+βjXj+εjY _ { i } = \alpha _ { j } + \beta _ { j } X _ { j } + \varepsilon _ { j }Yi​=αj​+βj​Xj​+εj​ ,how do the various variables and coefficients relate to heterogeneity?

What increasingly common web feature uses a Heckman model to correct of massive amounts of missing data,parameter heterogeneity,and Bayesian estimation methods?

To illustrate multiple comparisons and complex relationships,the best illustrative aid to use is

With the Markov chain Monte Carlo method of estimating parameters,the process finds the best fit for each parameter before it moves on to the next parameter.

Name the two main types of heterogeneity models.

In the equation $Y _ { i } = \alpha _ { j } + \beta _ { j } X _ { j } + \varepsilon _ { j }$ ,how do the various variables and coefficients relate to heterogeneity?