Question 1

In , cost does not enter directly into the calculation of sample size.

Accepted Answer

A)  cluster sampling 
B)  simple random sampling 
C)  stratified sampling 
D)  A and C are correct 
A)  cluster sampling 
B)  simple random sampling 
C)  stratified sampling 
D)  A and C are correct B

Question 2

The is the standard deviation of the sampling distribution of the mean or proportion.

Accepted Answer

A)  variance 
B)  standardized variate 
C)  standard error 
D)  standard deviation 
A)  variance 
B)  standardized variate 
C)  standard error 
D)  standard deviation C

Question 3

is a method of adjusting for nonresponse in which the researcher tries to discern a trend between early and late respondents. This trend is projected to nonrespondents to estimate their characteristic of interest.

Accepted Answer

A)  Subsampling of nonrespondents 
B)  Imputation 
C)  Subjective estimates 
D)  None of the above is correct. 
A)  Subsampling of nonrespondents 
B)  Imputation 
C)  Subjective estimates 
D)  None of the above is correct. D

Question 4

Two major nonresponse issues in sampling are improving response rates and adjusting for nonresponse.

Accepted Answer

A) True 
 B)False

Question 5

Trend analysis is an attempt to discern a trend between early and late respondents.

Accepted Answer

A) True 
 B)False

Question 6

When determining the sample size, if the population standard deviation, s, is unknown and an estimate is used, the standard deviation should be re- estimated once the sample has been drawn. Next a revised confidence interval should be calculated to determine the precision level actually obtained.

Accepted Answer

A) True 
 B)False

Question 7

Which method of improving response rate involves offering potential respondents monetary and non- monetary gifts?

Accepted Answer

A)  motivating the respondents 
B)  follow- up 
C)  incentives 
D)  prior notification 
A)  motivating the respondents 
B)  follow- up 
C)  incentives 
D)  prior notification

Question 8

Prepaid incentives have been shown to increase response rates to a greater extent than promised incentives.

Accepted Answer

A) True 
 B)False

Question 9

Information on differences between respondents and nonrespondents may be obtained from the sample itself, or it may be possible to estimate the differences from other sources.

Accepted Answer

A) True 
 B)False

Question 10

The percentage of qualified respondents who complete the interview is the .

Accepted Answer

A)  incidence rate 
B)  initial sample size 
C)  completion rate 
D)  final sample size 
A)  incidence rate 
B)  initial sample size 
C)  completion rate 
D)  final sample size

Question 11

When using the confidence interval approach to sample size determination, in some cases, precision is specified in relative rather than absolute terms. In other words, it may be specified that the estimate be within plus or minus R percentage points of the mean.

Accepted Answer

A) True 
 B)False

Question 12

The rate of occurrence of persons eligible to participate in the study expressed as a percentage is the .

Accepted Answer

A)  incidence rate 
B)  initial sample size 
C)  completion rate 
D)  final sample size 
A)  incidence rate 
B)  initial sample size 
C)  completion rate 
D)  final sample size

Question 13

When determining the sample size, the standard deviation may not be known. Which of the following was not mentioned in your text as a way to estimate the standard deviation?

Accepted Answer

A)  consult secondary sources 
B)  conduct a pilot study 
C)  estimate from the mean 
D)  estimate based on researcher judgment 
A)  consult secondary sources 
B)  conduct a pilot study 
C)  estimate from the mean 
D)  estimate based on researcher judgment

Question 14

When using the confidence interval approach to sample size determination, if the statistic of interest is a proportion, rather than a mean, the approach to sample size determination is very different.

Accepted Answer

A) True 
 B)False

Question 15

The concept of a sampling distribution enables us to use probability theory to make inferences about the population values.

Accepted Answer

A) True 
 B)False

Question 16

Suppose a simple random sample of five hospitals is to be drawn from a population of 20 hospitals. There are 15,504 different samples of size 5 that can be drawn. The relative frequency distribution of the values of the mean of these 15,504 different samples would specify the of the mean.

Accepted Answer

A)  confidence interval 
B)  sampling distribution 
C)  confidence level 
D)  normal distribution 
A)  confidence interval 
B)  sampling distribution 
C)  confidence level 
D)  normal distribution

Question 17

Discuss why there may be ethical concerns when using the standard deviation of a variable in determining sample size.

Accepted Answer

The sample size is dependent on the stan

Question 18

Ethical dilemmas associated with sample size determination include all of the following except .

Accepted Answer

A)  investigating the possibility of non- response bias and making a reasonable effort to adjust for it 
B)  what should be done when a difference in the actual standard deviation and the estimated standard deviation results in a larger confidence interval than desired 
C)  inflating the standard deviation to increase sample size and project revenue 
D)  All of the above pose ethical dilemmas. 
A)  investigating the possibility of non- response bias and making a reasonable effort to adjust for it 
B)  what should be done when a difference in the actual standard deviation and the estimated standard deviation results in a larger confidence interval than desired 
C)  inflating the standard deviation to increase sample size and project revenue 
D)  All of the above pose ethical dilemmas.

Question 19

Which equation is the correct equation for determining the initial sample size?

Accepted Answer

A)  Final Sample Size × Completion Rate Incidence Rate
 
B)  Final Sample Size Incidence Rate × Completion Rate  
C)  Final Sample Size × Incidence Rate
Completion Rate 
D)  Completion Rate Incidence Rate × Final Sample Size 
A)  Final Sample Size × Completion Rate Incidence Rate
 
B)  Final Sample Size Incidence Rate × Completion Rate  
C)  Final Sample Size × Incidence Rate
Completion Rate 
D)  Completion Rate Incidence Rate × Final Sample Size

Question 20

In the statistical approach to determining sample size, the precision level is specified in the end.

Accepted Answer

A) True 
 B)False

Exam 12: Sampling: Final and Initial

In , cost does not enter directly into the calculation of sample size.

The is the standard deviation of the sampling distribution of the mean or proportion.

is a method of adjusting for nonresponse in which the researcher tries to discern a trend between early and late respondents. This trend is projected to nonrespondents to estimate their characteristic of interest.

Two major nonresponse issues in sampling are improving response rates and adjusting for nonresponse.

Trend analysis is an attempt to discern a trend between early and late respondents.

When determining the sample size, if the population standard deviation, s, is unknown and an estimate is used, the standard deviation should be re- estimated once the sample has been drawn. Next a revised confidence interval should be calculated to determine the precision level actually obtained.

Which method of improving response rate involves offering potential respondents monetary and non- monetary gifts?

Prepaid incentives have been shown to increase response rates to a greater extent than promised incentives.

Information on differences between respondents and nonrespondents may be obtained from the sample itself, or it may be possible to estimate the differences from other sources.

The percentage of qualified respondents who complete the interview is the .

When using the confidence interval approach to sample size determination, in some cases, precision is specified in relative rather than absolute terms. In other words, it may be specified that the estimate be within plus or minus R percentage points of the mean.

The rate of occurrence of persons eligible to participate in the study expressed as a percentage is the .

When determining the sample size, the standard deviation may not be known. Which of the following was not mentioned in your text as a way to estimate the standard deviation?

When using the confidence interval approach to sample size determination, if the statistic of interest is a proportion, rather than a mean, the approach to sample size determination is very different.

The concept of a sampling distribution enables us to use probability theory to make inferences about the population values.

Suppose a simple random sample of five hospitals is to be drawn from a population of 20 hospitals. There are 15,504 different samples of size 5 that can be drawn. The relative frequency distribution of the values of the mean of these 15,504 different samples would specify the of the mean.

Discuss why there may be ethical concerns when using the standard deviation of a variable in determining sample size.

Ethical dilemmas associated with sample size determination include all of the following except .

Which equation is the correct equation for determining the initial sample size?

In the statistical approach to determining sample size, the precision level is specified in the end.

Introduction to Marketing

Defining the Marketing Research

Research Design

Exploratory Research Design

Exploratory Research Design

Descriptive Research Design

Causal Research Design

Measurement and Scaling

Measurement and Scaling

Questionnaire and Form

Sampling: Design and

Fieldwork

Data Preparation

Frequency Distribution, Crosstabulation, and Hypothesis

Analysis of Variance and

Correlation and Regression

Discriminant and Logit

Factor Analysis

Cluster Analysis

Multidimensional Scaling and

Structural Equation Modeling

Report Preparation and

International Marketing

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