Question

1- True or False? When each unit's chance of being selected into a sample is equal, then that is referred to as a simple random sample.

2- The major difference between an experiment and a quasi-experimental design is that in the latter:

	A.	subjects know they are in an experiment.
	B.	the sample size is usually greater.
	C.	not all variables can be controlled.
	D.	the costs are significantly lower.

3- True or False? A major benefit of focus groups is the synergistic effect that occurs with group discussion.

4- Which of the following are the two forms of personal interviews?

	A.	Focus groups and observational research
	B.	One-to-one interviews and focus groups
	C.	One-to-one interviews and Web surveys
	D.	Focus groups and Web surveys

5- True or False? Purposive samples in which experts' judgments are used for unit selection are non-probability samples.

6- In order to conduct a probability survey, it is necessary to have a(n):

	A.	estimate of probabilities.
	B.	listing of the universe of the population.
	C.	equal weight to each person in the survey.
	D.	estimate of reliability and validity.

7- True or False? Dividing the population into mutually exclusive subsets and randomly sampling from within each subset is a stratified sample.

Answer 1

True (t at ia rue