Answer Key
Module 8: Sampling
Module 8: Sampling
The correct answers for this module are:
1. E
2. D
3. A
4. C
5. B
6. A
7. C
8. C
9. C
10. B
11. D
If you missed more than three of these problems, you should devote some study to sampling.
Resources for Studying Sampling:
Research Methods in Education, Seventh Edition: Chapter 11
William Wiersma; Allyn and Bacon, 2000; $84
This text is often used in GSEHD masters degree level research courses. It provides a good overview of research methods.
Practical Sampling
Gary, Henry: Sage Publications, 1990. Price: $26.
This is a conceptual discussion of elementary and intermediate sampling procedures. It is probably the most easily read book on the topic.
The Research Methods Knowledge Base, Second Edition: Chapter 2
http://www.atomicdogpublishing.com
This is one of the first and best online texts about research methods for behavioral sciences. Pay the $14 necessary to access the online version.
Online Statistics Course from University of Minnesota, Lesson 7
http://www.cee.umn.edu/dis/courses/STAT1001_7271_01.www/index.html
David Orwell
This online introductory statistics course material is intended to be used with Freedman and et al.'s "Statistics-2nd Ed." (W. W. Norton, 1991).
Dr. Drott\'s Random Sampler
http://drott.cis.drexel.edu/sample/content.html; Free.
This is a Web-based guide to sampling. The discussion is generally at an elementary level except for the extensive intermediate-level discussion about determining optimum sample sizes.
Air University Sampling and Surveying Handbook: Chapter 4
http://www.maxwell.af.mil/au/hq/selc/smplntro.htm
This online text provides a good introductory explanation of sampling, but does not offer any exercises or interactive demonstrations.
Sampling: A Workbook
http://www.tardis.ed.ac.uk/~kate/qmcweb/scont.htm
This online chapter provides a simple explanation of basic sampling. It has some "activities" but no answer key. Don't expect responses from the author of the site.
Research Randomizer
www.randomizer.org; Free.
This clever and useful interactive software allows you to generate random numbers within any specified range, up to seven digits.
UCLA Statistics: Sample Size Calculator
http://home.stat.ucla.edu/calculators/sampsize.phtml; Free.
This site calculates the sample sizes needed for a specified confidence interval at a given confidence level. It has separate calculators for mean values, proportions, and totals.
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