POL 201 EXAM 2 QUESTIONS WITH VERIFIED
ANSWERS
Sample - Answers - An ___________________ is any subset of units collected in some
manner from a population.
a. Sample
b. Estimator
c. Element
d. Sampling frame
(multiple choice)
nonprobability - Answers - A ____________ sample is one in which each element in the
population has an unknown probability of being
selected
a. Probability
b. Nonprobability
c. Systematic
d. Stratified
(multiple choice)
systematic - Answers - A ___________ sample in which elements are selected from a
list at predetermined intervals.
a. Probability
b. Nonprobability
c. Systematic
d. Stratified
cluster - Answers - A ________ sample is a probability sample in which the sampling
frame initially consists of groups of
elements. (fill in the blank)
snowball - Answers - In a __________ sample, respondents are used to identify other
persons who might qualify for inclusion in the
sample. (fill in the blank)
Standard error of the estimator - Answers - The mathematical term for the variation
around the expected value is the _____________.(fill in the blank)
, Sampling error - Answers - A(n) _____________ is the discrepancy between an
observed and a true value that arises because only a portion
of a population is observed.
a. Standard error
b. Sampling error
c. Error in conjecture
d. Statistical error
(multiple choice)
Probability - Answers - A _______________ sample is simply a sample for which each
element in the total population has a known
probability of being included in the sample.
a. Probability
b. Nonprobability
c. Systematic
d. Stratified
(multiple choice)
Population - Answers - The major goal of statistical inference is to make supportable
conjectures about the unknown
characteristics of a
a. Population
b. Standard errors
c. Sample
d. Estimator
(multiple choice)
Secondary - Answers - ________ data is data used by a researcher who did not
personally collect the data.
a. Primary
b. Secondary
c. Tertiary
d. Supplemental
(multiple choice)
Participant - Answers - In _____________ observation, the investigator is a regular
participant in the activities or group being observed.
ANSWERS
Sample - Answers - An ___________________ is any subset of units collected in some
manner from a population.
a. Sample
b. Estimator
c. Element
d. Sampling frame
(multiple choice)
nonprobability - Answers - A ____________ sample is one in which each element in the
population has an unknown probability of being
selected
a. Probability
b. Nonprobability
c. Systematic
d. Stratified
(multiple choice)
systematic - Answers - A ___________ sample in which elements are selected from a
list at predetermined intervals.
a. Probability
b. Nonprobability
c. Systematic
d. Stratified
cluster - Answers - A ________ sample is a probability sample in which the sampling
frame initially consists of groups of
elements. (fill in the blank)
snowball - Answers - In a __________ sample, respondents are used to identify other
persons who might qualify for inclusion in the
sample. (fill in the blank)
Standard error of the estimator - Answers - The mathematical term for the variation
around the expected value is the _____________.(fill in the blank)
, Sampling error - Answers - A(n) _____________ is the discrepancy between an
observed and a true value that arises because only a portion
of a population is observed.
a. Standard error
b. Sampling error
c. Error in conjecture
d. Statistical error
(multiple choice)
Probability - Answers - A _______________ sample is simply a sample for which each
element in the total population has a known
probability of being included in the sample.
a. Probability
b. Nonprobability
c. Systematic
d. Stratified
(multiple choice)
Population - Answers - The major goal of statistical inference is to make supportable
conjectures about the unknown
characteristics of a
a. Population
b. Standard errors
c. Sample
d. Estimator
(multiple choice)
Secondary - Answers - ________ data is data used by a researcher who did not
personally collect the data.
a. Primary
b. Secondary
c. Tertiary
d. Supplemental
(multiple choice)
Participant - Answers - In _____________ observation, the investigator is a regular
participant in the activities or group being observed.
