Question 1

Ethical dilemmas associated with sample size determination include all of the following except ________.
A)inflating the standard deviation to increase sample size and project revenue
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)investigating the possibility of non-response bias and making a reasonable effort to adjust for it
D)All of the above pose ethical dilemmas.

Accepted Answer

The answer of Ethical dilemmas associated with sample size determination...

Question 2

Discuss what can be done to reduce not-at-homes.

Accepted Answer

The answer of Discuss what can be done to reduce...

Question 3

Which statement is not true about not-at-homes?
A)People with small children are more likely to be at home than single or divorced people.
B)Consumers are more likely to be at home on weekdays than on weekends.
C)Consumers are more likely to be at home in the evening as opposed to during the afternoon.
D)Pre-notification and appointments increase the likelihood that the respondent will be at home when contact is attempted.

Accepted Answer

According to research, consumers are more likely to be at home on weekends than on weekdays. Therefore, statement B is not true.

Question 4

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

Accepted Answer

The answer of Discuss why there may be ethical concerns...

Question 5

________ is a statistical procedure that attempts to account for nonresponse by assigning differential weights to the data depending on the response rates.
A)Weighting
B)Trend analysis
C)Subjective estimates
D)Imputation

Accepted Answer

Weighting is the statistical procedure used to adjust the data for nonresponse. In this procedure, differential weights are assigned to the data to represent the probability of the response. The weights are based on the response rate of the sample and the characteristics of the nonrespondents. This procedure helps in producing accurate estimates for the population. The other options - trend analysis, subjective estimates, and imputation - are not related to accounting for nonresponse.

Question 6

________ is a method to adjust for nonresponse by assigning the characteristic of interest to the nonrespondents based on the similarity of the variables available for both nonrespondents and respondents.
A)Weighting
B)Trend analysis
C)Subjective estimates
D)Imputation

Accepted Answer

Imputation is a method to adjust for nonresponse by filling in missing values for the characteristic of interest. The missing data is estimated based on the available variables for both nonrespondents and respondents, in order to create a complete dataset for analysis.

Question 7

Which method of adjusting for nonresponse has the researcher contacting a sub-sample of the nonrespondents; projecting the values obtained from the sub-sample to all respondents; then adjusting the survey results to account for nonresponse?
A)substitution
B)sub-sampling of nonrespondents
C)subjective estimates
D)replacement

Accepted Answer

Sub-sampling of nonrespondents involves contacting a sub-sample of the nonrespondents and projecting the values obtained from the sub-sample to all respondents, then adjusting the survey results to account for nonresponse. This method is considered one of the best ways to adjust for nonresponse bias.

Question 8

Discuss four of the methods of reducing refusals to participate in a survey.

Accepted Answer

The answer of Discuss four of the methods of reducing...

Question 9

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

Accepted Answer

The answer of ________ is a method of adjusting for...

Question 10

Which method of adjusting for nonresponse involves evaluating the likely effects of nonresponse based on experience and available information?
A)substitution
B)sub-sampling of nonrespondents
C)subjective estimates
D)replacement

Accepted Answer

Subjective estimates involve using the knowledge and experience of the researchers to evaluate the potential effects of nonresponse. This method is often used in surveys with low response rates, where limited data is available from nonrespondents.

Question 11

Which method of improving response rate involves sending potential respondents a postcard or letter to remind nonrespondents to complete and return the questionnaire?
A)motivating the respondents
B)follow-up
C)incentives
D)prior notification

Accepted Answer

Follow-up involves sending a reminder to nonrespondents to complete and return the questionnaire. This method has been found to increase response rates. Option A (motivating the respondents) and option C (incentives) are also effective methods to improve response rates, but they do not involve sending a postcard or letter. Option D (prior notification) involves notifying potential respondents in advance about the survey, but it does not involve sending a reminder to nonrespondents.

Quiz 12: Sampling: Final and Initial Sample Size Determination

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

Discuss what can be done to reduce not-at-homes.

Which statement is not true about not-at-homes?

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

________ is a statistical procedure that attempts to account for nonresponse by assigning differential weights to the data depending on the response rates.

________ is a method to adjust for nonresponse by assigning the characteristic of interest to the nonrespondents based on the similarity of the variables available for both nonrespondents and respondents.

Which method of adjusting for nonresponse has the researcher contacting a sub-sample of the nonrespondents; projecting the values obtained from the sub-sample to all respondents; then adjusting the survey results to account for nonresponse?

Discuss four of the methods of reducing refusals to participate in a survey.

________ 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.

Which method of adjusting for nonresponse involves evaluating the likely effects of nonresponse based on experience and available information?

Which method of improving response rate involves sending potential respondents a postcard or letter to remind nonrespondents to complete and return the questionnaire?