Blog Archives

(Bootstraping) Follow-Up Contrasts for Within-Subject ANOVAs

May 9, 2019
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(Bootstraping) Follow-Up Contrasts for Within-Subject ANOVAs

So you've run an ANOVA and found that your residuals are neither normally distributed, nor homogeneous, or that you are in violation of any other assumptions. Naturally you want to run some a-parametric analysis... but how?In this post I will demonstrate how to run a permutation test ANOVA (easy!) and how to run bootstrap follow-up analysis (a bit more...

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Quidditch: is it all about the Snitch?

November 24, 2018
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Quidditch: is it all about the Snitch?

Much has been said about how the game of Quidditch is ruined by the scoring system - specifically how it makes no sense that the snitch is worth 150 points and that catching it ends the game . Most of these arguments seem to revolve around the claim that it is nearly impossible to win a match of Quidditch...

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Examining Inter-Rater Reliability in a Reality Baking Show

October 18, 2018
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Examining Inter-Rater Reliability in a Reality Baking Show

Game of Chefs is an Israeli reality cooking competition show, where chefs compete for the title of "Israel's most talented chef". The show has four stages: blind auditions, training camp, kitchen battles, and finals. Here I will examine the 4th season's (Game of Chefs: Confectioner) inter-rater reliability in the blind auditions, using some simple R code.The Format In the blind auditions,...

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cheatR: an R package for catching cheaters

July 29, 2018
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cheatR: an R package for catching cheaters

cheatR is a mini package to help you find cheaters by comparing hand-ins. It was developed by Almog Simchon and me in response to students overheard bragging about how an assignment in an first-year undergrad course was "super easy" because "we all just copied from each other!" (though this would later turn out to be an exaggeration).Our idea was...

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