"When I started teaching mandatory biostatistics classes in 1970 at UNC, I realized early on that a lot of kids didn't want to take a course they perceived as boring, so I kept things relaxed and fun."
Instructor Spotlight: David Kleinbaum

Likert scale assessment surveys

Do you work with multiple choice tests, or Likert scale assessment surveys? Rasch methods help you construct linear measures from these forms of scored observations and analyze the results from such surveys and tests. "Practical Rasch Measurement - Core Topics" In this course, you will learn practical…

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Statistically Significant – But Not True

If you are looking for the Feature Engineering blog post, you can find it here: https://www.statistics.com/feature-engineering-data-prep-still-needed/ In 2015, at an Alzheimer's conference, Biogen researchers presented dramatic brain scans showing that the antibody aducanumab effectively cleared out plaque in the brain, plaque that was associated with…

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Darwin’s Legacy in Statistics

Charles Darwin, the most famous grandson of the Enlightenment thinker Erasmus Darwin, published his ground-breaking theory of evolution, “The Origin of Species,”160 years ago. Another grandson of Erasmus, Francis Galton, became one of the founding fathers of statistics (correlation, the “wisdom of the crowd,” regression…

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Industry Spotlight: CROs

CRO's, or contract research organizations, are a $40 billion industry, growing at close to 12% per year. They provide contract services to the pharmaceutical industry, including statistical design and analysis, laboratory services, administration of clinical trials, and monitoring of drugs once they are on the…

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Space Shuttle Explosion

In 1986, the U.S. space shuttle Challenger exploded several minutes after launch. A later investigation found that the cause of the disaster was O-ring failure, due to cold temperatures. The temperature at launch was 39 degrees, colder than any prior launch. The cold caused the…

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Job Spotlight: Digital Marketer

A digital marketer handles a variety of tasks in online marketing - managing online advertising and search engine optimization (SEO), implementing tracking systems (e.g. to identify how a person came to a retailer), web development, preparing creatives, implementing tests, and, of course, analytics. There are…

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Book Review: Active-Epi

ActivEpi Web, by David Kleinbaum, is the text used in two Statistics.com courses (Epidemiology Statistics and Designing Valid Studies), but it is really a rich multimedia web-based presentation of epidemiological statistics, serving the role of a unique textbook format for an introductory course in the…

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Survival Analysis

Convinced that he, like his father, would die in his 40's, Winston Churchill lived his early life in a frenetic hurry. He had participated in four wars on three continents by his mid-20's, served in multiple ministerial positions by his 30's, and published 12 books…

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Personality regions

There are Red States and Blue States. The three blue states of the Pacific coast constitute the Left Coast. For Colin Woodward, Yankeedom comprises both New England and the Great Lakes. If you're into accessories, there's the Bible Belt, the Rust Belt, and the Stroke…

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Statistics.com Partners With CrowdANALYTIX to Offer New Online Course With Crowdsource Contest As Project

Crowdsourcing, using the power of the crowd to solve problems, has been used for many functions and tasks, including predictive modeling (like the 2009 Netflix Contest). Typically, problems are broadcast to an unknown group of statistical modelers on the Internet, and solutions are sought. Every…

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