Question 1

Noncoverage error arises because of a failure to include some part of the defined population in the sampling frame.

Accepted Answer

A) True 
 B)False

Question 2

The probability of finding someone home is greater for:

Accepted Answer

A)  high-income families. 
B)  low-income families. 
C)  rural families. 
D)  urban families. 
E)  Both b and c

Question 3

Effective strategy(ies) to increase initial response rates is(are):

Accepted Answer

A)  ask respondent to complete a simple task at the beginning. 
B)  offer respondents money for cooperation. 
C)  use a good quota sampling plan. 
D)  Both a and b 
E)  a, b, and c.

Question 4

Which of the following is typically estimated by comparing the sample survey results with some outside criterion?

Accepted Answer

A)  Coding errors 
B)  Sampling errors 
C)  Noncoverage errors 
D)  Nonresponse errors 
E)  Refusal errors

Question 5

The number of completed interviews with responding units divided by the number of eligible responding units in the sample is called ____________________.

Accepted Answer

The answer of The number of completed interviews with responding...

Question 6

A random sample of 5,000 households are selected for interviews with the following results: 1,010 completed interviews
864 refusals by the respondent
3,126 no answer/not at home
The response rate is:

Accepted Answer

A)  19%. 
B)  20%. 
C)  36%. 
D)  38%. 
E)  51%.

Question 7

Which of the following has NOT been shown to be effective in decreasing the number of refusals?

Accepted Answer

A)  The use of incentives 
B)  Convincing the respondent of the value of the research 
C)  Use of experienced interviewers 
D)  Guarantees of anonymity 
E)  They have all been shown to be effective.

Question 8

A researcher investigating the consumption of sugar takes a random sample from the population and computes the mean sugar consumption. He repeats the procedure a number of times using the exact same procedure, and finds the means obtained vary from sample to sample. This is an example of:

Accepted Answer

A)  systematic error. 
B)  sampling error. 
C)  nonsampling error. 
D)  noncoverage error. 
E)  response error.

Question 9

Which of the following is FALSE?

Accepted Answer

A)  The main sources of nonresponse bias are not-at-homes and refusals. 
B)  The type of incentive used to reduce nonresponse may create another potential bias. 
C)  Technological advancements have helped researchers overcome the not-at-home problem. 
D)  Using incentives to reduce the nonresponse rate may inflate response errors. 
E)  Not-at-homes and refusals are both sources of error in telephone surveys.

Question 10

Which of the following statements concerning response incentives is FALSE?

Accepted Answer

A)  Monetary incentives often have the greatest influence on response rates. 
B)  It probably isn't advisable to give more than $1 for completing a survey. 
C)  Large amounts of money are more effective than smaller amounts of money at increasing response rates. 
D)  A "gift" can be more psychologically motivating than "wages." 
E)  All of the above are true.

Question 11

An interviewer finds that a subject is not at home; to complete his sample, he substitutes the nearest available subject for the missing subject. This practice is:

Accepted Answer

A)  reasonable and provides accurate results. 
B)  not recommended as it complicates the problems by increasing the proportion of at-homes in the sample. 
C)  recommended even though it increases the proportion of at-homes. 
D)  unreasonable although the results are generally accurate. 
E)  probably the best available technique for handling the not-at-home problem.

Question 12

Which of the following are office errors?

Accepted Answer

A)  Not-at-homes 
B)  Refusals 
C)  Interviewer cheating 
D)  Coding 
E)  Response errors

Question 13

The lower the response rate, the:

Accepted Answer

A)  more likely it is that response error will affect research results. 
B)  less likely it is that response error will affect research results. 
C)  more likely it is that noncoverage error will affect research results. 
D)  less likely it is that nonresponse error will affect research results. 
E)  more likely it is that nonresponse error will affect research results.

Question 14

Which of the following is NOT an example of a nonsampling error?

Accepted Answer

A)  Using a telephone directory as a sampling frame. 
B)  Choosing a quota sample by strictly adhering to the response instructions. 
C)  Using a city map purchased in a gas station as the sampling frame. 
D)  Using state car title records as a sampling frame. 
E)  All of the above are examples of non-sampling errors.

Question 15

Errors introduced into the study during data processing are:

Accepted Answer

A)  Type I errors. 
B)  nonobservation errors. 
C)  sampling errors. 
D)  total errors. 
E)  office errors.

Question 16

The response rate functions to:

Accepted Answer

A)  assess the likely influence of nonresponse error on the study's results. 
B)  serve as an indicator of the overall quality of a data collection effort. 
C)  assess the degree of response error. 
D)  Both a and b 
E)  a, b, and c.

Question 17

Discuss at least five (5) ways in which response rates might be improved.

Accepted Answer

The answer of Discuss at least five (5) ways in...

Question 18

Noncoverage error is not a problem for which of the following sampling frames?

Accepted Answer

A)  Phone book 
B)  Mailing list 
C)  Map 
D)  None of the above have a potential noncoverage problem. 
E)  All of the above potentially have a noncoverage problem.

Question 19

The response rate formula for a telephone survey where there is no eligibility requirement excludes:

Accepted Answer

A)  refusals. 
B)  wrong numbers. 
C)  not-at-homes. 
D)  completed interviews. 
E)  All of the above are included in the response rate formula for a telephone survey where there is no eligibility requirement.

Question 20

The empirical evidence suggests which of the following does NOT affect the refusal rate?

Accepted Answer

A)  Nature of the respondent 
B)  Sponsor of the research 
C)  Nature of the subject 
D)  Circumstances surrounding the contact 
E)  They all affect the refusal rate.

Exam 10: Data Collection: Enhancing Response Rates while Limiting Errors