Program-Statistics

=**Data Sets**=

[|IEA Data Tables] - Tables of data from the TIMMS and PIRLS studies user:chericem1

[|The Data & Story Library (DASL)] - Links to data files from a wide variety of disciplines, along with "story problems" designed to help students understand a variety of statistical methods used in conjunction with each data set user:chericem1

[|The Data Library] - Data sets that can be downloaded as Excel spreadsheets and used to practice statistical analyses. You'll also find links to collaborative projects designed to give K-12 students opportunities to work with real world data and statistics in meaningful ways user:chericem1

[|School Data Direct] - Searchable site with data from schools around the country user:chericem1

[|Swivel] - Lets you search for, explore, compare, share, and upload data on a variety of different topics. Searchable. VERY useful for finding stats on particular topics user:chericem1

=Simulations & Visualizations=

[|Confidence Intervals: Confidence Level, Sample Size, and Margin of Error - Wolfram Demonstration] - VERY useful visualization accomplished via sliders that demonstrates the relationship beween confidence interval, standard deviation, standard error, and sample size. To manipulate it yourself, you have to download both it and the Mathematica player user:chericem1

[|Gallery of Distributions] - A gallery of visual representations of various kinds of distributions from an online engineering statistics textbook user:chericem1

[|Gallery of Graphical Techniques (Engineering Statistics)] - A gallery of statistical visual representations from an online engineering statistics textbook user:chericem1

[|Statistics Demonstrations - Wolfram Project] - A host of simulations that illustrate various statistical principles. You need the free Mathematica player to view them user:chericem1

=**Statistics** **Explanations & Tutorials**=

[|Confidence Intervals: Text] - VERY clear, concise, concrete explanation of confidence intervals with interactive self-assessment exercises with hints user:chericem1

[|Open Learning Initiative at Carnegie Mellon University] - Outstanding, free, open source course content for a variety of subject areas, including biology, calculus, chemistry, empirical research methods, engineering, French, statistics, and physics. Content is multimedia in nature user:chericem1

[|Probability and Statistics -- from Wolfram MathWorld] - Links to tons of quick explanations, complete with formulas, of a variety of common topics in statistics courses (clicking on the general topic will take you to comprehensive menus of subtopics) user:chericem1

[|SPSS Help from Texas A&M] user:chericem1

[|Statistical Terms in Sampling] - Clear, concise explanation of variable, statistic, sampling distribution, standard error, etc. user:chericem1

[|Statistics Canada] - Searchable database of explanations of statistics, data sets, studies, and loads of resources for teachers and students--available in English or French user:chericem1

[|Understanding Statistics Tutorial] - A brief, well-documented tutorial on statistics designed for educational policymakers but useful to anyone interested in educational research user:chericem1

=Statistics Humor=

[|Anova Analysis of Value] - Very funny cartoon from PhD Comics that draws on common statistical procedures to "analyze" the value of one's work user:chericem1

=**Tech Tools for Statistics**=

[|Chi Square Calculator] - Calculate either the p-value or the critical value, depending on what info. you input user:chericem1

[|Quantpsy.org] - Lots of useful statistical calculators and tools w/ citation info. user:chericem1

[|Sample Size Calculator] - Enter your desired confidence level, confidence interval, and population size, and this handy little tool will compute the sample size you need to use in order to secure a representation of your population that is sufficiently accurate user:chericem1

[|Standard Error of Sample Means] - This handy little tool will do all the calculating for you if you enter the known information user:chericem1

[|T-test calculator] user:chericem1

=**Other Resources**=

[|Discovering Stats Using SPSS] - This book was recommended by Robin Roots as a very accessible guide to stats and SPSS.

[|Statistics Formula Sheet - PDF] - Contains formulas for descriptive statistics, probability, discrete and continuous distributions, variance, t-tests, population intervals, etc. user:chericem1

[|Swivel] - Lets you search for, explore, compare, share, and upload data on a variety of different topics. Searchable. VERY useful for finding stats on particular topics user:chericem1

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