The Short Version Bargh, Chen, and Burrows (1996) reported that priming students with words related to old age made them walk more slowly, with effect sizes above one standard deviation (d = 1.04 and ...

Gary P. Latham is a professor at the business school of the University of Toronto, where he has spent his career studying goal pursuit — how people successfully accomplish goals. His first article app...

Meta-analysts routinely test for publication bias, but a nonsignificant test is inconclusive because it may be a Type 2 error. In a large factorial simulation, I show that publication-bias tests have ...

This blog post follows up on an introduction to meta-analyses with heterogeneous data. Modeling Heterogeneity in Meta-Analyses - Replicability-Index We can distinguish two types of meta-analysis. Meta...

To make sense of empirical data, researchers need statistical models, and the choice of model can influence conclusions. It is therefore important to be aware of the assumptions a model makes and, ide...

Meta-psychology was born from a simple observation: the way psychologists used significance testing created a distorted literature. Researchers treated p < .05 as a license to publish and p > .05 as a...

The past decade has not been kind to experimental social psychology. Study after study failed to replicate and entire literatures have turned out to be built on nothing (a.k.a. statistical noise minin...

Cochrane has implemented a new system for checking whether any of its thousands of published reviews include retracted studies in their analyses, the organization announced today. The effort alread…

Scientists with disparate expertise writing grants together can identify knowledge gaps and drive progress — but systems must change to incentivize them.

Inferential statistics in psychology lacks a unified practice. Debates about statistical inference tend to organize around a 2 × 2 structure: one dimension distinguishes frequentist from Bayesian appr...

School of the Art Institute of Chicago professor put under investigation after a student complained about a case study

Project Implicit is a nonprofit company founded in 1998 by three social psychologists: Tony Greenwald (University of Washington)Mahzarin Banaji (Harvard University)Brian Nosek (University of Virginia)...

Hoenig, J. M., & Heisey, D. M. (2001). The Abuse of Power: The Pervasive Fallacy of Power Calculations for Data Analysis. The American Statistician, 55(1), 19–24. https://doi.org/10.1198/0003130013003...

"You can't teach an old dog new tricks." (Proverb) Dolores Albarracín and the Defense of Old Social Psychology Dolores Albarracín is a prominent social psychologist at the University of Pennsylvania w...

The open science movement has made remarkable progress. Data sharing policies are now standard at top journals. Pre-registration is common. Reproducibility checks are increasingly required. In a recen...

In a blog post on Andrew Gelman's blog, Erik van Zwet voiced serious concerns about the performance of z-curve, a meta-analytic method to detect selection bias. The main concern was that z-curve faile...

Closed peer-review has strict rules about communication. The main reason may be that open display of peer-review would destroy the illusion that peer-review equals quality control. I am not allowed to...

Open Science in Psychology What is open science? Isn't open science a tautology like "new innovation." If there is open science, what is closed science? The need for open science arises from the fact ...

The Implicit Association Test (IAT) was introduced in the late 1990s as a measure of implicit associations, cognitions, and attitudes that might not be fully captured by self-report measures. The pros...

To access the chapters of this book, you need to register first with your email.Registration is free. Register now. Table of Content About the Author Chapter 01 – Basic Scientific Concepts (optional) ...

Concerns about publication bias and the replicability of psychological research have motivated the development of methods that evaluate the credibility of published significant results. Two promine...