Question 1

It is ok to treat nonprobability samples as probability samples and to project the results to a target population.

Accepted Answer

Nonprobability samples cannot be treated as probability samples, as they do not provide a fair representation of the population and do not allow for accurate projection of results to a target population.

Question 2

The researcher has an ethical responsibility to the client to develop a sampling design that is appropriate for controlling the sampling and nonsampling errors.

Accepted Answer

It is the ethical responsibility of the researcher to develop a sampling design that reduces sampling error and nonsampling error in order to ensure the reliability and validity of the study findings. This includes selecting an appropriate sample size, using a probability sampling method, and minimizing bias in the selection process.

Question 3

To avoid sampling errors,the Internet researcher must be able to control the pool from which respondents are selected.

Accepted Answer

Controlling the pool from which respondents are selected helps ensure that the sample accurately represents the population being studied and reduces the likelihood of bias or skewed results.

Question 4

When conducting stratified sampling only simple random sampling should be employed in selecting the elements from each stratum.

Accepted Answer

Stratified sampling requires dividing the population into homogeneous subgroups or strata and then selecting a sample from each stratum using simple random sampling. Therefore, only simple random sampling should be used in selecting the elements from each stratum.

Question 5

The researcher has the ethical obligation to protect the identities of the respondents,even if it means limiting the level of sampling detail that is reported to the client and other parties.

Accepted Answer

This is true. Maintaining confidentiality and protecting the identities of respondents is crucial in ethical research practices. Limiting reporting detail is one way to ensure their anonymity and privacy is maintained.

Question 6

A subgroup of the elements of the population selected for participation in the study is a ________.

Accepted Answer

A subgroup of the population selected for participation in the study is called a sample. A judgmental sample is a type of sample selected based on the researcher's judgment or expertise, rather than a specified sampling method. A sampling unit is the individual unit that is being sampled, such as a person or household. A sampling frame is a list of all the sampling units in the population from which the sample is selected.

Question 7

If the same sampling procedures are used in each country,the results should be comparable.

Accepted Answer

The answer of If the same sampling procedures are used...

Question 8

A common form of cluster sampling is area sampling,in which the clusters consist of geographic areas such as counties,housing tracts,or blocks.

Accepted Answer

This statement is true. Area sampling is a form of cluster sampling in which the clusters are defined by geographic areas.

Question 9

Sampling techniques and procedures vary in accuracy,reliability,and cost from country to country.

Accepted Answer

Sampling techniques and procedures can vary based on various factors including cultural differences and resources available in each country, which can lead to differences in accuracy, reliability, and cost.

Question 10

A complete enumeration of the elements of a population or study objects is a ________.

Accepted Answer

A census involves conducting a complete enumeration of the elements of a population or study objects. Option A refers to the entire group being studied, option B refers to the group that is the desired focus of the study, and option D refers to a single unit of analysis within the population.

Question 11

The logic behind proportionate sampling is simple.Strata with larger relative sizes are more influential in determining the population mean,and these strata should also exert a greater influence in deriving the sample estimates.

Accepted Answer

The answer of The logic behind proportionate sampling is simple.Strata...

Question 12

The aggregate of all the elements,sharing some common set of characteristics,that comprises the universe for the purpose of the marketing problem is the ________.

Accepted Answer

In the context of marketing research, the population refers to the aggregate of all the elements that share some common set of characteristics and that comprise the universe for the purpose of the marketing problem. It is the total group of people, products, or other objects that the researcher wants to study or generalize about. The sampling frame is the list of all the elements in the population from which the sample is drawn. The census refers to a study that attempts to measure every member of the population. The element is the individual unit of analysis in a study, such as a person, a product, or a brand.

Question 13

The online recruited Internet sampling technique can be further classified as convenience or judgment.

Accepted Answer

The answer of The online recruited Internet sampling technique can...

Question 14

The elements within a stratum should be as heterogeneous as possible,but the elements in different strata should be as homogeneous as possible.

Accepted Answer

In stratified sampling, the elements within a stratum should be as homogeneous as possible to ensure that each stratum is accurately represented, while the elements in different strata should be as heterogeneous as possible to capture the diversity across the entire population.

Question 15

There are several basic questions involved in sampling design."Should a sample be taken? If so,what process should be followed?" are two such questions.Which of the following questions is also involved in sampling design?

Accepted Answer

All three questions (how large the sample should be, how to control for nonresponse errors, and what type of sample to take) are involved in sampling design. The process of sampling involves making decisions about all of these factors in order to obtain a representative sample.

Question 16

The number of strata to use is a matter of judgment,but experience suggests the use of no more than eight.

Accepted Answer

The answer of The number of strata to use is...

Question 17

For simple random sampling,the researcher assumes that the population elements are ordered in some respect

Accepted Answer

For simple random sampling, the researcher does not assume any particular order or arrangement of the population elements. Instead, each element has an equal probability of being selected.

Question 18

Only the nonprobability sampling techniques can be implemented using both types of Internet panels.

Accepted Answer

Both probability and nonprobability sampling techniques can be implemented using Internet panels.

Question 19

Stratified sampling differs from quota sampling in that the sample elements are selected probabilistically rather than based on convenience or judgment.

Accepted Answer

Stratified sampling involves dividing the population into subgroups and then selecting a random sample from each subgroup. This ensures that the sample is representative of the entire population. Quota sampling involves selecting a certain number of participants based on specific characteristics, such as age or gender, without using random selection.

Question 20

A major issue related to Internet sampling is representativeness because of lack of computer ownership and Internet access in many households in the United States.

Accepted Answer

Many households in the United States do not have computers or Internet access, which can make it challenging to obtain a truly representative sample using Internet sampling methods.

Quiz 11: Sampling: Design and Procedures