Statistics

Instructional Videos

• Statistics made easy ! ! ! Learn about the t-test, the chi square test, the p value and more 
  Greg Martin (Best 13 minutes you will spend on this topic)
   
• Descriptive statistics and data visualisation. An introduction to statistics and working with data 
  Greg Martin (14 minutes)
   
• Teach me STATISTICS in half an hour! Seriously. 
  Justin Selzer, Zedstatistics (42 minutes)
   
• T-test, ANOVA and Chi Squared test made easy 
  Greg Martin (15 minutes)
   
• Sample size and study power 
  Greg Martin (20 minutes)
   
• Sensitivity and specificity - explained in 3 minutes 
  Greg Martin (3 minutes)
   
• Randomized Control Trials and Confounding 
  Greg Martin (4 minutes)
   

General Statistical Resources

• Statpages: Web pages that perform statistical calculations 
  Great general reference with lots of interactive pages. Links to online statistical pages. Worth browsing the intro page to see all the available resources. It is dated in format but is still a good launching pad for stat resources.
   
• Reading Statistics and Research 
  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. Also, there are online rsources (other websites). Also, there is a section that points you to online resources (other websites and quizzes.
   
• Rice University Virtual Lab in Statistics 
  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. While it will look dated, it still has great examples.
   
• Statistics to use 
  Covers common statistical tests and concepts. Good graphics to illustrate points.
   
• Simple Interactive Statistical Analysis 
  Allows you to conduct statistical analysis directly in the program. Also has sample size and power calculators. Good to give you a feel for how the various statistical tests works—just pluck in some data points and play!
   
• CDC: Epi Info Home Page 
  Free downloadable software for handling data sets, conducting surveys. Has sample size calculator as well.
   
• Wikipedia  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.
   
• Multiplicity and Statistical Adjustments for Type I Error 
  Article from New England Journal of Medicine.
   

Sample Size and Power Calcuators

• See also StatPages (above)
   
• Creative Research Systems: sample size calculator 
  Sample size calculator for survey research.
   

Resources for finding statistics on diseases and demographics

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

2023-07