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When a research chooses a sample that is not typical of a large population this is known as:


A) a cluster
B) probability
C) nonprobability
D) bias

E) A) and B)
F) B) and C)

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Cluster sampling is a very efficient tool,but the efficiency means a less accurate sample since with each cluster there is a chance for sampling error.

A) True
B) False

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Which of the following are not true concerning sampling error?


A) if many independent random samples are drawn from a population, then the sample statistics from those samples are distributed in a predictable way around the population parameter
B) probability theory allows us to use a formula to estimate how closely the sample statistics are clustered
C) the standard error identifies how spread out or clustered the sample statistics are around the population parameter
D) sampling error allows us to know if we selected the wrong subjects for our sample

E) A) and B)
F) B) and C)

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If a researcher has a population of college students from which a sample has been drawn and concludes that on average there are higher grades achieved by those students who live on campus than those who commute,higher grades is an example of what?


A) a sample element
B) a population parameter
C) a sample statistic
D) an unreliable result

E) A) and B)
F) A) and C)

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When the researcher must rely upon available subjects such as stopping people on the street to ask opinions about a recent crime,the technique is called_____________.

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reliance o...

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On the first day of the semester your introductory criminology instructor handed out a very long questionnaire asking things that you did not think was appropriate about your drinking habits.Back in the dorm you complained to your roommates and discovered that they were given the same questionnaire by their instructors.What sampling method was used?


A) snowball sample
B) multistage cluster sample
C) simple random sample
D) reliance on available subjects

E) A) and D)
F) None of the above

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When a researcher uses a stratified sampling technique,they


A) select elements from heterogeneous subsets of the population
B) recognize the extent that subsets are homogeneous on stratified variables will generally result in homogeneity on other variables as well
C) realize that a stratified sample is likely to be less representative on a number of variables than a simple random sample
D) recognize the extent that subsets are heterogeneous on stratified variables will generally result in heterogeneity on other variables as well

E) B) and D)
F) A) and B)

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Sampling is used because:


A) it may not possible to collect information from the entire population
B) it is necessary to collect information from the entire population
C) samples are useful tools only in experimental designs
D) it is easier and you can guess if your data reflects the larger population

E) A) and B)
F) B) and C)

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A variable which has two attributes such as gender,is what type of variable?


A) sampling variable
B) binomial variable
C) sampling frame
D) representative variable

E) B) and D)
F) A) and D)

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Reliance on available subjects can be an appropriate sampling method if:


A) the researcher wants to study the characteristics of people who are passing the sample point at some specified time
B) collecting data from people what have all characteristics of a matrix
C) the researcher wants to do research on active criminals or deviants
D) the researcher only has a questionnaire to be completed

E) C) and D)
F) A) and D)

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Which method begins with a matrix or table describing the characteristics of a target population?


A) probability
B) snowball
C) quota
D) simple random sampling

E) A) and B)
F) None of the above

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Sampling is the process of:


A) selecting observations
B) determining values
C) hypothesis testing
D) generating data

E) A) and B)
F) A) and C)

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Quota samples,judgmental samples,snowball samples and reliance on available subjects are all examples of:


A) nonprobability sampling
B) probability sampling
C) sampling distributions
D) sampling frames

E) A) and D)
F) A) and C)

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The purpose of sampling is to select a set of elements from a population in such a way that the descriptions of the sample statistics accurately portray the parameters of the population.This is best achieved through use of:


A) a convenience sample
B) random selection
C) the sampling element
D) stratified sampling

E) B) and C)
F) A) and D)

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Nonprobability sampling cannot be used in criminal justice research.

A) True
B) False

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Use the city that your university is located in for this question.You have been given a grant to study the citizens' attitudes to your university with respect to noise,traffic,and minor property crimes.How would you draw a multistage cluster sample that would be representative of your city?

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To draw a multistage cluster sample that...

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Dwayne wanted to find out what the citizens of Canton think about a proposed law that would require sex offenders to be treated in the community in lieu of prison confinement and he decided to randomly call people listed in the phone book.What is his sampling frame?


A) the citizens of Canton
B) the proposed law
C) telephone listings
D) sex offenders

E) B) and D)
F) C) and D)

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If the variable that you are interested in studying is so rare that it is unlikely to be discovered using random sampling,what is the best alternative?


A) accidental sampling
B) quota sampling
C) stratified sampling
D) purposive sampling

E) None of the above
F) A) and B)

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Which of the following is accurate concerning the use of systematic sampling?


A) systematic sampling is a poor excuse of simple random sampling
B) systematic sampling is often used as a substitute for stratified sampling
C) systematic sampling is frequently used rather than a simple random sample
D) systematic sampling is always considered a non-probability sampling technique

E) A) and B)
F) A) and C)

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When each element of a population has an equal chance of selection to the sample this process is known as___________________ selection.

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