http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1 online resource ([vii], 73 pages) : illustrations.
How much is enough in your sample? What's the difference between a research question and a survey question? This book shows readers how to specify inclusion and exclusion criteria, select the appropriate probability and non-probability sampling methods, understand the sources of error in sampling, and calculate the response rate.