Exam 6: Sampling: Theory and Methods

In order to use this sampling method, a researcher has to first order all members of the defined target population in some way (say, as in a phone book). Which method is this researcher most likely using?

Interviewing individuals at a neighborhood café can generate a judgment sample.

A census is less time-consuming and less costly than a sample.

Systematic random sampling works better than simple random sampling especially in those situations where there might be a hidden pattern in population.

In a systematic sampling study, if the sampling frame has 1,500 names and the desired sample size is 50, the "skip interval" should be:

Determining the sample size for nonprobability samples involves intuitive judgment.

Simple random sampling usually produces biased estimates of a population's characteristics.

The U.S. census is conducted every five years.

Probability sampling is undertaken to achieve all of the following, EXCEPT:

List the steps to be followed in developing a sampling plan.

Which one of the following is a nonprobability sample method?

Sampling errors are related to the accuracy of data whereas nonsampling errors relate to the representativeness of the sample to the defined target population.

If the estimated population standard deviation based on previous studies is $20, and the acceptable error is plus or minus $5, and the z-value for a 95 percent level of confidence is 1.96, the needed sample size is approximately:

Precision is the degree to which sample research results accurately reflect the actual population.

Any geographical unit with identifiable boundaries can be used in area sampling.

A researcher wants to find out the average age of population in two cities, A and

The first step in drawing a systematic random sample is to obtain a list of potential sampling units that contain an acceptable frame of the target population elements.

Which of the following statements about sampling error is false?

Another term for judgment sampling is purposive sampling.

In a defined target population, there are 1,950 small firms, 45 medium sized firms, and 5 large firms. A researcher is interested in drawing a probability sample from this population. However, given the greater economic significance of the five large firms, he wants to draw more heavily from that group. Given this objective, the researcher should use: