Example of a p-value computation. The vertical coordinate is the probability density of each outcome, computed under the null hypothesis. The p-value is the area under the curve past the observed data point.

Bera case studies in educational research. In addition to studies linking fluoride to reduced IQ in humans, and impaired learning/memory in animals, human and animal studies have also linked

GraphPad Calculators - very helpful! --------Categorical data (Chi square, etc.) -- Continuous data (Descriptive statistics, CI of mean/difference/ratio/SD, etc.) -- Statistical distributions and interpreting P values (Calculate P from t, z, r, F or chi-square, or vice-versa. Correct a P value for multiple comparisons and Bayes. And more) -- Random numbers -- Chemical and radiochemical data (Create and convert molar solutions, convert moles & grams, radioactivity calculations)

Free web calculator provided by GraphPad Software. Calculates the P value from z, t, r, F, or chi-square.

Scientific method: Statistical errors : Nature News & Comment

Scientific method: Statistical errors

Scientific method: Statistical errors - P values, the 'gold standard' of statistical validity, are not as reliable as many scientists assume.

Understanding the p-value - Statistics Help

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Interpret a regression model

How to Interpret Regression Analysis Results: P-values and Coefficients

The trouble with the p value.

The P-Value Is a Hoax, But Here’s How to Fix It

The trouble with the p value.

Statisticians issue warning over misuse of P values

Statisticians issue warning over misuse of P values Policy statement aims to halt missteps in the quest for certainty.

THIS is evil. This is seriously evil. Be vegan if you want, idc. But changing the anatomy of an animal and running endless tests on them (no doubt that will be painful) because you don't like the way nature works is just plain TWISTED.

THIS is evil. This is seriously evil. Be vegan if you want, idc. But changing the anatomy of an animal and running endless tests on them (no doubt that will be painful) because you don't like the way nature works is just plain TWISTED.

Values, Ethics & Failure in the Digital Age : You Get What You Work For, Not What You Wish for

Values, Ethics & Failure in the Digital Age : You Get What You Work For, Not What You Wish for

yay for psychology nerdiness!! I totally want this when I have kids.

yay for psychology nerdiness! I totally want this when I have kids.

Joint post by Yoav Benjamini and Tal Galili. The post highlights points raised by Yoav in his official response to the ASA statement (available as on page 4

Joint post by Yoav Benjamini and Tal Galili. The post highlights points raised by Yoav in his official response to the ASA statement (available as on page 4

How to Interpret Regression Analysis Results: P-values and Coefficients | Minitab

How to Interpret Regression Analysis Results: P-values and Coefficients

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