Pharmacy Services

Pharmacy Services

Statistics

General Statistical Resources

  • Statpages.net: Web pages that perform statistical calculations statpages.org
    Great general reference with lots of interactive pages. Links to online statistical pages. Worth browsing the intro page to see all the available resources.
  • Reading Statistics and Research www.readingstats.com
    Companion website for the book: Huck SW. Reading Statistics and Research 6th edition. Boston: Pearsons, 2012: The website has lots of quizzes and resources to work through. The "Misconceptions" section is good to help solidify key concepts.
  • Open Epi: Open Source Epidemologic Statistics for Public Health www.openepi.com
    Tool bar makes this easy navigate. Has sample size calculator as well as many other resources.
  • Rice University Virtual Lab in Statistics onlinestatbook.com/rvls.html
    Hyperstat: statistics "book" with links to other stat sites; simulations and demonstrations: lots of visuals to explain concepts; case studies with some medical examples; and analysis lab demonstrates how to work with data.
  • Statistics to use www.physics.csbsju.edu/stats
    Covers common statistical tests and concepts. Good graphics to illustrate points.
  • Simple Interactive Statistical Analysis www.quantitativeskills.com/sisa/
    Allows you to conduct statistical analysis directly in the program. Good to give you a feel for how the different statistical tests work.
  • CDC: Epi Info Home Page www.cdc.gov/epiinfo/index.htm
    Free downloadable software for handling data sets, conducting surveys. Has sample size calculator as well.
  • Wikipedia en.wikipedia.org/wiki/Statistics plus search any stats term you are looking up
    Under usual circumstances we would not recommend Wikipedia as a resource because of the open source nature of the reference. However, we have found it may be a good place to start for descriptions for many statistical terms and it provides good links to other resources. This link is specific to the statistics section which gives a brief primer; the resources at the end are good too. Please be sure to check other references as well.

Sample Size and Power Calcuators

  • See also StatPages.net and OpenEpi (above)
  • JavaStat: retrospective power analysis statpages.org/postpowr.html
    Post-hoc power anaysis. Good to use as a reader of the literature if authors fail to address power. Good description of controversy.
  • PS: Power and Sample Size calculations (Vanderbilt) biostat.mc.vanderbilt.edu/twiki/bin/view/Main/PowerSampleSize
    Software that can be downloaded to calculate sample size. Addresses several hard to find issues in sample size calcuations such as for paired data.
  • Creative Research Systems: sample size calculator www.surveysystem.com/sscalc.htm
    Sample size calculator for survey research.

Effect Size

Resources for finding statistics on diseases and demographics

  • CDC: Data and Statistics www.cdc.gov/scientific.htm
    Links to scientific data on statistics and scientific laboratory data.
  • National Center for Health Statistics www.cdc.gov/nchs/
    Provides national health, morbidity and mortality statistics and offers free-access to specific data warehouses.

Meta-sites to other statistical resources

  • The World Wide Web Virtual Library: Statistics www.stat.ufl.edu/vlib/statistics.html
    Lists hyperlinks to a variety of statistics software services, tutorials, schools of statistics, statistics news groups and journals. (Be sure to scroll past all the country links to resources toward the bottom.)