-Questions-You uploaded just the demographic questions. If you are conducting quantitative research you will also need to inlclude a hypothesis and null hypothesis for each approved research question
Tannia Rodriguez
Chapter 4 Review Questions
1. One way to generalize the results in a study to other persons, places, and times is to develop an idea of the degree to which the other contexts are similar to the study context. What is the phrase that describes this theoretical similarity framework?
a. the sampling model
b. similarity matrix
c. gradient of similarity
d. threats to similarity
(Reference: 4.3a)
2. What is the sampling term used to describe the population that a researcher has access to—the population from which he or she will draw a sample?
a. the theoretical population
b. the accessible population
c. the drawn population
d. the random population
(Reference: 4.2)
3. If we looked at the average college entranceexam score for all first-year college students in the United States, we would be studying a
a. statistic of that population.
b. response of that population.
c. sample distribution of that population.
d. parameter of that population.
(Reference: 4.6a)
4. The standard error is
a. the spread of scores around the average of a single sample.
b. the spread of scores around the average of averages in a sampling distribution.
c. the spread of scores around the standard deviation of a single sample.
d. the spread of scores around the standard deviation in a sampling distribution.
(Reference: 4.6b)
5. Which of the following statements about sampling error is most accurate?
a. The smaller the size of a sample in a research project, the smaller the standard error.
b. The larger the size of a sample in a research project, the smaller the standard error.
c. The standard error is completely independent of the size of a sample.
d. The standard error is synonymous with a sampling error.
(Reference: 4.6b)
6. Picking a name out of a hat is a simple form of
a. random selection.
b. stratified selection.
c. systematic selection.
d. cluster selection.
(Reference: 4.7)
7. Three hundred adolescents sign up for a research project that only 100 can complete. If each adolescent has a 33.3 percent chance of being selected for the project, then the sample is considered a
a. simple random sampling.
b. stratified random sampling.
c. systematic random sampling.
d. cluster random sampling.
(Reference: 4.7b)
8. If 1,000 college sophomores sign up for a research project designed to assess gender and ethnic differences in dating, what must researchers do to ensure that they have a proportionate stratified random sample?
a. Divide the groups into subgroups according to gender; then randomly draw a sample of equal
males and females from the pool.
b. Divide the groups into subgroups according to ethnic identity and gender; then randomly draw
a sample population that would include an equal number of members from each subgroup.
c. Divide the groups into homogeneous subgroups according to ethnic identity and gender; then randomly draw a sample population with the same percentage in each subgroup.
d. Divide the groups into heterogeneous subgroups according to ethnic identity and gender; then randomly draw a sample population that would reflect the percentage of subgroup membership reflected in the general population.
(Reference: 4.7c)
9. Which sampling process begins with the selection of a random number in a list of elements in your sampling frame, and assumes that the characteristics being measured are randomly distributed in the population?
a. simple random sampling
b. stratified random sampling
c. systematic random sampling
d. cluster random sampling
(Reference: 4.7d)
10. What is the sampling technique that is best used when there is a large geographical area to cover?
a. simple random sampling
b. stratified random sampling
c. systematic random sampling
d. cluster (area) random sampling
(Reference: 4.7e)
11. The normal distribution is often referred to as the “bell curve” because it provides the “ring of truth.”
a. True
b. False
(Reference: 4.6c)
12. Surveys reported in the media almost always mention that the numbers presented are accurate within a few percentage points. The statistic used to determine the accuracy of such results is called the standard error.
a. True
b. False
(Reference: 4.6b)
13. A study based on a nonprobability sampling method can never be considered representative of the population.
a. True
b. False
(Reference: 4.5)
14. A researcher was trying to study a hard-toresearch population (for example, homeless adolescents, migrant workers, cocaine dealers, etc.). The researcher decided to try sampling by tapping the social network of the local population, beginning with the first person she could find and then asking that person to help identify others, who would then be asked to further identify possible participants. This researcher is using a sampling technique known as “avalanche sampling” because pretty soon she could expect to have a very large number of participants.
a. True
b. False
(Reference: 4.5g)
15. The main advantage of multistage sampling is that it combines sophistication with efficiency, while the main disadvantage is that it can be complex and difficult to explain to nontechnical audiences.
a. True
b. False
(Reference: 4.7f)
