I remember a sense of defeat when I started learning about research methodology. I enrolled in psychology brimming with questions, but instead of getting answers, there was this statistics course that seemed to be just caveat after caveat after caveat about what we’re allowed to conclude from data. You should have a representative sample, but … [Read more…]
I previously discussed why our search for intelligence in the brain bypasses some critical features of how IQ is measured, thus leading to data which add up to a theoretically confusing picture. It is possible that a clear-cut neural correlate of intelligence will be found some day. It is also possible that intelligence is a … [Read more…]
Being intelligent is about being good at many things. Intelligence researchers assign a single number to a diverse constellation of aptitudes, and this single number is the best across-the-board predictor of performance that differential psychology has ever yielded. Intuitively, there should be an ability behind this constellation: the more of this ability people have, the … [Read more…]
I previously argued that psychologists don’t need brain research, and that neuroscience and psychology essentially abuse each other. I feel strongly about this, I think there are real problems when the two fields meet. But it would be wrong to think that people don’t care about these issues. Neuroscience is a new field. It brings together … [Read more…]
Kia Nobre’s Brain and Cognition Lab recently discussed best research practices. Ana’s list of suggestions was accepted as a starting point, and the discussion continued from there. Overall, the atmosphere was of easy acceptance of new research practices that will hopefully enhance the reliability of our findings and conclusions. We noted that the general lack of theoretical coherence in the … [Read more…]
When my son was born, friends and family embarked on a furious attempt to answer the most important question of all: who does he look like? The kid has his own combination of features, but people would be strongly convinced he looks just like one of us. And on average, these estimations were random! Like any new … [Read more…]
The brain has taken over. The real genius of Albert Einstein’s brain! Is your brain depressed? Why our brains are addicted to fast food! How does the brain form original ideas? One of these days, someone is bound to write that paper: What is it like to be a brain? Until recently, the focus of … [Read more…]
I was recently invited to review a manuscript for a journal I follow regularly. The content was right along the lines of my kind of research, and I was happy to accept. I was, of course, Reviewer Number Two. I always have been, in each of my fifteen-ish reviewing experiences. But this was the first … [Read more…]
Neuroscientific research suffers from small subject samples, lack of theory and lack of consensus on data analysis protocols. This leads to experiments with p-values that contain large errors of measurement, where publication is selectively limited to those that (sometimes randomly) fall below 0.05. Such a situation leads to any one study result being unreliable, which … [Read more…]
This text came to life with the purpose of kicking off a discussion in Kia Nobre’s Brain and Cognition lab, about best research practices. For a few years now, I’ve been following the debate on the replication crisis in psychology from the sidelines. Here, I will present what I do to integrate that knowledge into how I … [Read more…]