How to Design and Evaluate Research in Education, 5/e

Jack R. Fraenkel, San Francisco State University
Norman E. Wallen, San Francisco State University

Sampling

True/False


1	A cluster random sample is one obtained by using groups as the sample unit rather than individuals.
		A)	TRUE
		B)	FALSE


2	A group of individuals that is conveniently available to be studied is called a systematic sample.
		A)	TRUE
		B)	FALSE


3	A simple random sample is a sample selected from a population in such a manner that all members of the population have an equal chance of being selected.
		A)	TRUE
		B)	FALSE


4	A table of random numbers is a table of numbers, listed and arranged in a specific order.
		A)	TRUE
		B)	FALSE


5	A systematic sample is a specific group of individuals that is kept on call for repeated study.
		A)	TRUE
		B)	FALSE


6	When a study is replicated, it is repeated with a new sample and sometimes under somewhat new conditions.
		A)	TRUE
		B)	FALSE


7	When a categorical variable can be identified that is related to the dependent variable or the variables being studied, the researcher can ensure a more representative sample by selecting participants from each category.
		A)	TRUE
		B)	FALSE


8	A two-stage random sample is a sample selected because the individuals have special qualifications of some sort, or because of prior evidence of representativeness.
		A)	TRUE
		B)	FALSE


9	The term "ecological generalizability" refers to the extent to which the results of the study can be generalized to conditions or settings other than those that prevailed in a particular study.
		A)	TRUE
		B)	FALSE

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