Intersting Links (Provided by Bob Heckard, Penn State University)
Surveys and Public Opinion Polls
Gallup Polls
: Recent polls done by the Gallup Polling organization.
PollingReport.com
A collection of recent poll results from many different sources.
National Council on Public Polls
Excellent article entitled "20 Questions a Journalist Should Ask About Poll Results
National Opinion Research Center
USA Today Internet Polls about Health
Volunteer samples
CNN Polling Details
: A Frequently Asked Questions page explaining how CNN polls are usually conducted.
Observational Studies and Experiments
Reuters Daily Health News
: Good daily summaries of health related news. Nice source of current examples.
USA Today Health Index
: An archive of past health stories in the USA Today newspaper.
CNN Health News
: CNN current health related stories.
General Resource Sites
Chance News
: A newsletter of miscellaneous media items useful for class discussion.
Archive of Mathematical Mistakes
: Collection of examples of ways people misinterpret numbers. Many of the examples are statistical.
The Junk Science Home Page
: The name of the site says it all. The author of this site show no mercy in his criticisms of topical research studies.
How Numbers Are Tricking You
Examples of misleading statistics.