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How to Design and Evaluate Research in Education Book Cover
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

Essay Quiz



1

Suppose that a researcher is going to conduct a study to determine the characteristics of graduate school that are most stressful to students. Identify two variables that a researcher may want to consider using to define strata before selecting a sample of graduate students for the study.
2

A researcher conducted an experiment using the members of his "Introduction to Research Methods" class. The purpose of the experiment was to determine if providing students with instructor notes would increase achievement. Identify the most likely target and accessible populations and the type of sample.
3

Briefly explain why ecological generalizability is almost impossible to attain with a single research study.