Peder M. Isager

Causion is a free web app for building causal diagrams (DAGs) and then watching them behave—by simulating data and switching from observation to intervention with do().

In this post, we will use a practical example to explore the power of statistical control, explaining why adjusting for the right variables clarifies relationships and why adjusting for the wrong ones can introduce new, serious biases.

In this blog post, I will briefly explain why experimental designs are considered so valuable by scientists and why we often insist that randomized experiments are necessary for answering causal questions.

In this blog post I will describe eight basic rules that govern the relationship between causal mechanisms in the real world and associations/correlations we can observe in data.

In this blog post I propose a four one-sided test of significance (FOST) that can be used to test whether an effect is smaller than OR larger than OR equivalent to the smallest effect size of interest.

In this blog post I will explain why it makes sense to think about causal explanations when we see correlation, why correlation does not always imply causation, and which alternative causal models to consider when you are trying to figure out why two vari…

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Pre-requisites First, make sure you have the latest version of the distill package installed from CRAN: install.packages("distill") Restart your R session.

Pre-requisites First, make sure you have the latest version of the postcards package installed from CRAN: install.packages("postcards") Restart your R session.

So far, we’ve been leveraging GitHub Pages for publishing.

Pre-requisites First, make sure you have the latest version of the blogdown package installed from CRAN: install.packages("blogdoown") Restart your R session.

Welcome to the Introducing Yourself Online workshop!

Profile https://docs.github.com/en/github/setting-up-and-managing-your-github-profile/personalizing-your-profile Pin projects to profile https://docs.github.com/en/github/setting-up-and-managing-your-github-profile/pinning-items-to-your-profile Profile RE…

Given that most research is original and we have limited resources available for replication, we need guidelines for study selection in replication research.

A method for calculating the number of alternative causal models, given a number of variables/nodes.

Summary of unconference session at Tilburg Meta-research day 2019.

How to calculate an equivalence test, and power for an equivalence test, for a fixed effect in a mixed effects model using R and PANGEA.

(written in collaboration with Nicholas A.

Tachyons is a design system that allows you to design gorgeous interfaces in the browser with little effort.

“Grid is the very first CSS module created specifically to solve the layout problems we’ve all been hacking our way around for as long as we’ve been making websites.” — Chris House, A Complete Guide to CSS Grid Layout 1 Since I began building websites in…

Formspree makes it easy to receive submissions from HTML forms on your static website.

A summary of the pros and cons of multiple candidate statistics.

** Contact page don’t contain a body, just the front matter above.

Font Sizes A A A A A A A A 6rem (96px) 5rem (80px) 3rem (48px) 2.25rem (36px) 1.5rem (24px) 1.25rem (20px) 1rem (16px) .875rem (14px) Type Samples Headline Subheadline Level 1 Heading One page to rule them all...well, not really.

The Open Science movement is here to stay.

Sometimes, the costs of doing good science outgrow the resources available to the individual scientist.

Justifications of study choice from 85 replication studies.