# Design of Experiments

• ### Cartoon: Methodology Trial

A cartoon for discussing how subgroup analyses often lead to false positive results (using the comical idea of someone studying your study by having both treatment arms give a placebo).  The cartoon is #2726 in the web comic XKCD created by Randall Munroe.

• ### Biostatistics with NASA

This article gives a brief overview of the role of a biostatistician at NASA.  It also provides names of those one can contact in this area.

• ### Contingency Tables Part II

This presentation is a part of a series of lessons on the Analysis of Categorical Data. This lecture covers the following: Pearson's chi-square; the empirical logit; and prospective, case-control, and cross-sectional studies.

• ### Contigency Tables Part II

This presentation is a part of a series of lessons on the Analysis of Categorical Data. This lecture covers the following: Pearson's chi-square; the empirical logit; and prospective, case-control, and cross-sectional studies.

• ### The Islands -- Learning about Experiment Design on a Virtual Population

The Islands is a free, innovative, online virtual human population created by Dr Michael Bulmer from the University of Queensland. The Islands supports the teaching of statistics through data investigations by providing students with a realistic virtual world where they can propose statistical questions, design investigations and collect the necessary data for statistical analysis and interpretation. The wide range of data and tasks available on the Islands caters to many scientific areas and student interests. Must create an account to access this virtual world.

• ### Analysis Tool(s): JSE Archive of Interactive Computing (includes JAVA Applets)

The Journal of Statistics Education provides a collection of Java applets and excel spreadsheets (and the articles associated with them) from as early as 1998 on this webpage.

• ### Body Worn Camera Experiment

This website is a summary of a randomized controlled trial of a metropolitan police department's body-worn camera program. It is useful in class to talk about the design of the experiment and also to talk about how they state their results. Their results are given as confidence intervals for differences.

• ### Song: Principles of Experimental Design

A song to be used in discussing three key principles of experimentation – control, randomization, and replication. The lyrics were written by Mary McLellan from Aledo High School in Aledo, Texas as one of several dozen songs created for her AP statistics course. The song may be sung to the tune of the theme song written in 2004 by Mark Harrison and Blaise Smith for the animated tv show Spongebob Squarepants. Also, an accompanying video may be found at https://www.youtube.com/watch?v=NWX2s4WZWx8

• ### Song: Blocking

A song that may be used in discussing the value of blocking (or matching) in reducing variation in an experiment.  The lyrics were written by Mary McLellan from Aledo High School in Aledo, Texas as one of several dozen songs created for her AP statistics course. The song may be sung to the tune of the 1966 Beach Boys hit "Good Vibrations".  Also, an accompanying video may be found at https://www.youtube.com/watch?v=TPCnjwyH8As

• ### The STAT-ATTIC Website: A Database of Statistics Applets (JAVA) for Introductory Courses

A searchable database of approximately 600 applets for teaching introductory statistics topics, including graphical displays, descriptive statistics, probability concepts, random variables, sampling and sampling distributions, confidence intervals, hypothesis testing, ANOVA, chi-square tests, correlation and regression, time series and forecasting, decision analysis, and quality control charts. Applets are arranged by topic and intended use. Information on each applet includes source and url as well as a brief description.