About Posts Visualizations

Blog Posts

Here's a list of blog posts

The Cohen's d app translation project

2022-10-29

Why linear mixed-effects models are probably not the solution to your missing data problems

2020-07-09

Heterogeneous treatment effects and homogeneous outcome variances

2020-01-10

Mediation, confounding, and measurement error

2019-10-09

Change over time is not "treatment response"

2018-11-19

New paper: The consequences of ignoring therapist effects in longitudinal data analysis

2018-08-24

Estimating treatment effects and ICCs from (G)LMMs on the observed scale using Bayes, Part 1: lognormal models

2018-08-05

Do you really need a multilevel model? A preview of powerlmm 0.4.0

2018-05-04

Power analysis for longitudinal multilevel models: powerlmm 0.3.0 is now out on CRAN

2018-04-17

Slides from my talk on how to do power analysis for longitudinal 2- and 3-level models.

2018-04-11

Power analysis for longitudinal multilevel models: powerlmm 0.2.0 is now out on CRAN

2018-03-21

Confounded dose-response effects of treatment adherence: fitting Bayesian instrumental variable models using brms

2018-02-01

Are parallel simulations in the cloud worth it? Benchmarking my MBP vs my Workstation vs Amazon EC2

2018-01-26

Introducing 'powerlmm' an R package for power calculations for longitudinal multilevel models

2017-08-24

Where Cohen went wrong – the proportion of overlap between two normal distributions

2017-01-23

New d3.js visualization: Equivalence, non-inferiority and superiority testing

2016-11-29

New d3.js visualization: Bayesian inference

2015-11-22

[Updated] Statistical Power and Significance Testing Visualization

2015-08-24

[Update] P-curve visualization updated with log x-axis

2015-08-13

New d3.js visualization: the t-distribution and its normal approximation

2015-06-08

Using R and lme/lmer to fit different two- and three-level longitudinal models

2015-04-21

New visualization of the distribution of p-values using d3.js

2015-03-21

Interpreting Confidence Intervals – new d3.js visualization

2014-11-28

New d3.js visualization: Interpreting Correlations

2014-08-01

Some exploratory evidence that wait-list conditions may act as a nocebo in psychotherapy trials

2014-04-14

New d3.js visualization: Understanding Significance Testing and Statistical Power

2014-02-02

New d3.js visualization: Interpreting Cohen’s d effect size

2014-01-13

Calculating the Overlap of Two Normal Distributions Using Monte Carlo Integration

2014-01-08

Visualizing a One-Way ANOVA using D3.js

2013-05-31

Are the Current Criteria for Empirically Supported Treatments Too Lenient?

2013-05-30

Creating a typical textbook illustration of statistical power using either ggplot or base graphics

2013-05-26

Working with shapefiles, projections and world maps in ggplot

2013-05-23

Analytical and simulation-based power analyses for mixed-design ANOVAs

2013-05-22

PubMed publications in 2011 by 202 world countries: who’s the winner?

2012-05-07

How to download complete XML records from PubMed and extract data

2012-04-27

More PubMed data mining: looking at top 20 CBT journals

2012-04-26

Short R script to plot effect sizes (Cohen's d) and shade overlapping area

2012-04-23

An R Script to Automatically download PubMed Citation Counts By Year of publication

2012-04-19

How to work with Google n-gram data sets in R using MySQL

2012-04-12

Simple data mining and plotting data on a map with ggplot2

2012-04-02

Ggplot2, PubMed citation frequency and DSM-IV Axis I disorders by year

2012-03-31

Using Ggplot2 to plot last.fm top 100 albums

2012-03-22

Monty Hall Simulations

2012-03-20