The Mysterious Case of the Ghost Interaction
Oct 30, 2019
This spooky post was written in collaboration with Yoav Kessler (@yoav_kessler) and Naama Yavor (@namivor)..
Experimental psychology is moving away from repeated-measures-ANOVAs, and towards linear mixed models (LMM1). LMMs have many advantages over rmANOVA, including (but not limited to):
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Accounting for Within- AND Between-Subject Effects
Oct 21, 2019
This is a comment on Solomon Kurz’s (@SolomonKurz) recent post1 where he discusses how group-level data does not always reflect individual-level processes. I highly recommend reading his series of posts on the topic!
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(Bootstrapping) Follow-Up Contrasts for Within-Subject ANOVAs (part 2)
Aug 14, 2019
A while back I wrote a post demonstrating how to *bootstrap* follow-up contrasts for repeated-measure ANOVAs. Here is a demo of how to conduct the same bootstrap analysis, more simply.

Signal Detection Theory vs. Logistic Regression
Jul 29, 2019
I recently came across a paper that explained the equality between the parameters of signal detection theory (SDT) and the parameters of logistic regression in which the state (“absent”/“present”) is used to predict the response (“yes”/“no”, but also applicable in scale-rating designs) (DeCarlo, 1998).
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(Bootstrapping) Follow-Up Contrasts for Within-Subject ANOVAs
May 9, 2019
So you’ve run a repeated-measures 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?

Quidditch: Is It All About the Snitch?
Nov 25, 2018
What is the probability of winning a Quidditch match without catching the snitch?

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