Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Marketing Research > Chapter 9 Selecting the Sample > Flashcards

Chapter 9 Selecting the Sample Flashcards

1
Q

A _______ is defined as the entire group under study,

A

population

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

A ______ is defined as an accounting of the complete population.

A

census

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

A _______ is a subset of the population that suitably represents that entire group.

A

sample

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

A ________ is the basic level of investigation.

A

sample unit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

A ________ is a master source of sample units in the population.

A

sample frame

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

_______, which is the degree to which the sample frame fails to account for all of the population.

A

sample frame error

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

_______ is any error in a survey that occurs because a sample is used.

A

Sampling error

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Whenever a sample is taken, the survey will reflect _____.

A

sampling error

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Taking a ______ is less expensive than taking a census.

A

sample

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

All sample designs fall into one of two categories:

A

probability or nonprobability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

________ are samples where members of the population have a known chance (probability) of being selected into the sample.

A

Probability samples

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

_______, on the other hand, are samples where the chances (probability) of selecting members from the population into the sample are unknown.

A

Nonprobability samples

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

With ______, the method determines the chances, or probability, of a sample unit being selected into the sample.

A

probability sampling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

With __________, the probability of being selected into the sample is equal for all members of the population.

A

simple random sampling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Formula for simple random sample probability

A

Probability of selection = sample size/ population size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

With _________, the probability of selection into the sample is known for all members of the population.

A

simple random sampling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Examples of simple random sampling include the ______ and ______

A

random device method and the random numbers method.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The _________, sometimes referred to as “probability device method,” involves using an apparatus or procedure to ensure that every member of the population has the same chance of being selected into the sample.

A

random device method

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

The “_____” is a form of simple random sampling.

A

random device

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

A random number embodies simple _________

A

random sampling assumptions.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

_________, which are numbers whose chance nature is assured.

A

random numbers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Using _______ to draw a simple random sample requires a complete accounting of the population.

A

random numbers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

________ (RDD) is used in telephone surveys to overcome the problems of unlisted and new telephone numbers.

A

Random digit dialing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

________ overcomes problems of unlisted and new telephone numbers.

A

Random digit dialing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

______ is a way to select a random sample from a directory or list, and it is much more efficient than simple random sampling.

A

Systematic sampling

26
Q

Formula for skip interval

A

Skip interval=population list size/sample size

27
Q

_________ is more efficient than simple random sampling because only one or a very few random numbers need to be drawn at the beginning.

A

Systematic sampling

28
Q

With _________, the small loss in sampling precision is counterbalanced by its economic savings.

A

systematic sampling

29
Q

_______, the population is divided into subgroups or “clusters,” each of which could represent the entire population.

A

cluster sampling

30
Q

_______ , the researcher subdivides the population to be surveyed into geographic areas, such as census tracts, cities, neighborhoods, or any other convenient and identifiable geographic designation

A

area sampling

31
Q

_________, the researcher may believe that the various geographic areas (clusters) are sufficiently identical for results in just one area to be generalized to the full population.

A

one-step area sample approach

32
Q

_________ approach to the sampling process. That is, for the first step, the researcher could select a random sample of areas, then for the second step, he or she could decide on a probability method to sample individuals within the chosen areas.

A

two-step area sample

33
Q

________ employs either a one-step or two-step approach.

A

Area sampling

34
Q

________, which separates the population into different subgroups and then samples all of the subgroups.

A

stratified sampling

35
Q

_________ distribution has a long tail on one end and a short tail on the other.

A

skewed population

36
Q

__________ is used when the researcher is working with a “skewed” population and wishes to achieve high statistical efficiency.

A

Stratified sampling

37
Q

With stratified random sampling, one takes a skewed population and identifies the subgroups or _______ contained within it.

A

strata

38
Q

________, whose formula takes into consideration the sizes of the strata relative to the total population size, and applies those proportions to the strata’s means.

A

weighted mean

39
Q

A stratified sample may require the calculation of a ________ to achieve accuracy.

A

weighted mean

40
Q

Formula for weighted mean

A

Meanpopulation=(meanA)(proportionA)+(meanB)(proportionB)

41
Q

Researchers should select a basis for stratification that reveals ______ across the strata.

A

different responses

42
Q

________ which is some easily determined characteristic of each population member,

A

surrogate measure,

43
Q

If the strata sample sizes are scaled to their relative sizes in the population, the research design reflects a ________

A

proportionate stratified sample

44
Q

________, meaning that for the same sample size, researchers may obtain equivalent precision among the strata

A

statistical efficiency

45
Q

__________, and a weighted formula needs to be used because the strata sizes do not reflect their relative proportions in the population

A

disproportionate stratified sampling

46
Q

Samples drawn from groups to which the researcher has easy access are called _________

A

convenience samples

47
Q

With __________ methods, some members of the population do not have any chance of being included in the sample.

A

nonprobability sampling

48
Q

_________ are convenience samples.

A

Mall intercepts

49
Q

Convenience samples may ________ the population.

A

misrepresent

50
Q

Sometimes called “snowball samples,” ________ require respondents to provide the names of more prospective respondents

A

chain referral samples

51
Q

One source19 identifies four advantages of chain referral sampling:

A

(1) find samples quickly, (2) low cost, (3) works for hesitant respondents, and (4) able to access special populations, such as drug users

52
Q

_______ require that a judgment or “educated guess” be made as to who should represent the population.

A

purposive samples

53
Q

When a researcher specifies percentages of the total sample for various types of individuals to be interviewed and selects them via nonprobability sampling, this is called a _______

A

quota sample

54
Q

______ rely on key characteristics to define the composition of the sample.

A

Quota samples

55
Q

_______ are appropriate when researchers have a detailed demographic profile of the population on which to base the sample.

A

Quota samples

56
Q

______ are comprised of individuals who have consented to participate in online surveys

A

Online panel samples

57
Q

Types of online samples include

A

online panel samples, river samples, and email list samples.

58
Q

A ________ is created via the use of banners, pop-ups, or other online devices that invite website visitors to take part in a survey.

A

river sample

59
Q

________ are those purchased or otherwise procured from a person or company that has compiled email addresses of members of the population of interest.

A

Email list samples

60
Q

A ________ lists all the steps necessary to draw a sample.

A

sample plan

Marketing Research (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions