Selected Publications

Citation info:

Reproducibility is a defining feature of science, but the extent to which it characterizes current research is unknown. We conducted replications of 100 experimental and correlational studies published in three psychology journals using high-powered designs and original materials when available. Replication effects were half the magnitude of original effects, representing a substantial decline. Ninety-seven percent of original studies had statistically significant results. Thirty-six percent of replications had statistically significant results; 47% of original effect sizes were in the 95%; confidence interval of the replication effect size; 39% of effects were subjectively rated to have replicated the original result; and if no bias in original results is assumed, combining original and replication results left 68% with statistically significant effects. Correlational tests suggest that replication success was better predicted by the strength of original evidence than by characteristics of the original and replication teams.

Recent Publications

Recent & Upcoming Talks

Recent Posts

A beginning is the time for taking the most delicate care that the balances are correct.

– Fom Manual of Muad’Dib by Prinses Irulan (Herbert, 1965)

It’s been a while…

If you still have a while…


This is a demonstration of using R in the context of hypothesis testing by means of Effect Size Confidence Intervals.


A Post-Publication Peer-Review (3PR) of Time, Money, and Morality (Gino & Mogilne, 2013).



Badges to Acknowledge Open Practices

The aim is to specify a standard by which we can say that a scientific study has been conducted in accordance with open-science principles and provide visual icons to allow advertising of such good behaviours.


This is an example of using the custom widget to create your own homepage section.

I am a teaching instructor for the following courses at:

Graduate School Behavioural Science:

– Dynamics of Complex Systems (Go to Course Materials 2016-2017)

School for Pedagogical and Educational Sciences:

– Introduction to Scientific Methods