Trouble at the lab
The Economist: "I SEE a train wreck looming," warned Daniel Kahneman, an eminent psychologist, in an open letter last year. The premonition concerned research on a phenomenon known as "priming". Priming studies suggest that decisions can be influenced by apparently irrelevant actions or events that took place just before the More
Psychological Scientists Call for Paradigm Shift in Data Practices
Fabricating data to support an a priori hypothesis is the ultimate sin in scientific research. But what about throwing out an "outlier" or two? Or reporting some, but not all, of the measures you tested? These questionable research practices tend to fly under the radar, but they present a real More
APS 25th Annual Convention (2013)
Failure to Replicate the Mehta and Zhu (2009) Color Effect
Mehta and Zhu (2009) reported several studies in Science on the effects of the colors red and blue over a series of cognitive tasks. Red was hypothesized to induce a state of avoidance motivation which would cause people to become more vigilant and risk-averse in a task. Blue was hypothesized More
2013 Convention Video Blogs
Convention Poster Video Blogs
The Prevalence of Declining Effect Sizes in Educational Research
Effect sizes are the statistic generated by meta-analyses, a commonly used statistic in education research. This project uses a methodological framework similar to that of Jennions and Moller (2001) to determine whether declining effect sizes can be observed in educational research and attempts to explain possible causes of this observation. More
Understanding Replication: Confidence Intervals Much Better Than p Values
Geoff Cumming, La Trobe University, Australia, presents his research on "Understanding Replication: Confidence Intervals Much Better Than p Values," at the 25th APS Annual Convention. Replication is at the heart of science. A current hot topic across medicine, psychological science, and other disciplines is that a number of widely-accepted published More
Psychology uses 'registered replication reports' to improve reliability
The Guardian: On Tuesday a group of scientists published a protocol, a set of instructions for running an experiment, which represents the culmination of a year's discussion on the problems inherent in academic publishing. The protocol is the first in the Registered Replication Reports project. The scheme, led by Alex More
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