Deck 5: Sampling

Question 1

Simple random sampling in a survey can be achieved by simply selecting the first people who walk by you on a street corner.

Answer 1

False

Question 2

The demographic characteristics of people who use cell-phones only do not differ from the generational population.

Answer 2

False

Question 3

The interval for a systematic random sample is calculated by dividing the total population size by the desired sample size.

Answer 3

True

Question 4

If the calculated interval for a systematic random sample is 4.4, you would round down so that the interval is 4.

Question 5

An advantage of proportionate stratified random sampling is that you can ensure that certain demographic characteristics are represented in the sample in exact proportion to those characteristics in the population.

Question 6

Cluster sampling is a form of nonprobability sampling.

Question 7

A cluster is often some geographic unit.

Question 8

Nonprobability sampling methods allow for generalizations to be made to the broader population of interest.

Question 9

Snowball sampling methods are sometimes employed when it is hard to identify participants.

Question 10

A strength of snowball sampling is that you can ask people to identify other people without their consent.

Question 11

When sampling distributions take a normal shape, we can determine confidence intervals around the most common value.

Question 12

If researchers want to test a very strong relationship between variables, they will need to select a larger sample than if they are testing a weak relationship.

Question 13

A problem with research studies with minority communities is that the research has not benefitted the community.

Question 14

Match the key term with its definition.
-Elements

A) The entire set of individuals or entities to which study findings are to be generalized.
B) The individual members of the population whose characteristics are to be measured.
C) A list of all elements or other units containing the elements in a population.
D) Units that contain one or more elements and that are listed in a sampling frame.
E) A subset of a population used to study the population as a whole.

Question 15

Match the key term with its definition.
-Enumeration units

A) The entire set of individuals or entities to which study findings are to be generalized.
B) The individual members of the population whose characteristics are to be measured.
C) A list of all elements or other units containing the elements in a population.
D) Units that contain one or more elements and that are listed in a sampling frame.
E) A subset of a population used to study the population as a whole.

Question 16

Match the key term with its definition.
-Population

A) The entire set of individuals or entities to which study findings are to be generalized.
B) The individual members of the population whose characteristics are to be measured.
C) A list of all elements or other units containing the elements in a population.
D) Units that contain one or more elements and that are listed in a sampling frame.
E) A subset of a population used to study the population as a whole.

Question 17

Match the key term with its definition.
-Sample

A) The entire set of individuals or entities to which study findings are to be generalized.
B) The individual members of the population whose characteristics are to be measured.
C) A list of all elements or other units containing the elements in a population.
D) Units that contain one or more elements and that are listed in a sampling frame.
E) A subset of a population used to study the population as a whole.

Question 18

Match the key term with its definition.
-Sampling frame

A) The entire set of individuals or entities to which study findings are to be generalized.
B) The individual members of the population whose characteristics are to be measured.
C) A list of all elements or other units containing the elements in a population.
D) Units that contain one or more elements and that are listed in a sampling frame.
E) A subset of a population used to study the population as a whole.

Question 19

Match the key term with its definition.
-Simple random sampling

A) Groups are randomly selected, and then elements are randomly selected from those groups.
B) Sub-groups within the population are identified as sharing some characteristic, and elements are randomly selected from with those sub-groups.
C) Elements are selected by use of a random number table.
D) Elements are selected by choosing every nth element on the sampling frame after a random starting point.

Question 20

Match the key term with its definition.
-Systematic random sampling

A) Groups are randomly selected, and then elements are randomly selected from those groups.
B) Sub-groups within the population are identified as sharing some characteristic, and elements are randomly selected from with those sub-groups.
C) Elements are selected by use of a random number table.
D) Elements are selected by choosing every nth element on the sampling frame after a random starting point.

Question 21

Match the key term with its definition.
-Cluster sampling

A) Groups are randomly selected, and then elements are randomly selected from those groups.
B) Sub-groups within the population are identified as sharing some characteristic, and elements are randomly selected from with those sub-groups.
C) Elements are selected by use of a random number table.
D) Elements are selected by choosing every nth element on the sampling frame after a random starting point.

Question 22

Match the key term with its definition.
-Stratified random sampling

A) Groups are randomly selected, and then elements are randomly selected from those groups.
B) Sub-groups within the population are identified as sharing some characteristic, and elements are randomly selected from with those sub-groups.
C) Elements are selected by use of a random number table.
D) Elements are selected by choosing every nth element on the sampling frame after a random starting point.

Question 23

Match the key term with its definition.
-Availability Sampling

A) A procedure that requires some prior knowledge of characteristics in the population.
B) A procedure that relies on getting information from respondents to find others.
C) A procedure that considers the knowledge of the informant in the selection process.
D) A procedure that uses accidental or convenience selection techniques.

Question 24

Match the key term with its definition.
-Purposive Sampling

A) A procedure that requires some prior knowledge of characteristics in the population.
B) A procedure that relies on getting information from respondents to find others.
C) A procedure that considers the knowledge of the informant in the selection process.
D) A procedure that uses accidental or convenience selection techniques.

Question 25

Match the key term with its definition.
-Quota Sampling

A) A procedure that requires some prior knowledge of characteristics in the population.
B) A procedure that relies on getting information from respondents to find others.
C) A procedure that considers the knowledge of the informant in the selection process.
D) A procedure that uses accidental or convenience selection techniques.

Question 26

To conduct a survey on current undergraduate social work majors, a researcher gets a list of all students who have declared a social work major from the registrar from which a sample will be drawn. This list is known as what?

A) A sample
B) A population
C) A target population
D) An aggregation
E) A sampling frame

Question 27

A social work researcher attends several different meetings of the Gay and Lesbian Community Center, in which she listens to speakers and introduces herself as a researcher. She identifies several people who seem to know a lot about the gay and lesbian community in Yourtown, including people from two apparently different "factions" within the group, and she asks them for interviews. This sampling procedure is associated with:

A) Probability sampling
B) Quota sampling
C) Availability sampling
D) Purposive sampling
E) Convenience sampling

Question 28

Which of the following are considered effective strategies for recruiting marginalized participants?

A) Demonstrate that there is a benefit to the community
B) Have an appreciation for cultural barriers
C) Go where there are potential participants
D) Involve key community members
E) All of the above are effective

Question 29

In social work research, what is the importance of sampling?
Why are probability sampling techniques superior to non-probability sampling in achieving this end?
When might non-probability samples be superior?

Question 30

List the five points about sample quality stated in Chapter 5.