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Meditation, mindfulness, and executive control: results from a new EEG study
Tweet Introduction It’s not really surprising that meditation might aid in executive control, since the act of meditation is basically an exercise in executive control. Take mindfulness, for example, I...
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Short R script to plot effect sizes (Cohen’s d) and shade overlapping area
Tweet Introduction to effect sizes Many times you read in a study that “x and y were significantly different, p p-values. Effect sizes, in this case, are metrics that represent the amount of...
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Further evidence that mindfulness meditation might bolster creativity
Tweet Image credit Introduction I recently wrote an article about if mindfulness could aid in insight problem solving. The problem with the study, I referenced to in my article, was that it did not...
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More PubMed data mining: looking at top 20 CBT journals
Tweet Introduction Continuing from what I wrote in my article An R Script to Automatically download PubMed Citation Counts By Year of Publication, I’ve now looked at article counts for journals. I did...
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How to download complete XML records from PubMed and extract data
Tweet Introduction My first PubMed script (An R Script to Automatically download PubMed Citation Counts By Year of Publication) extracted yearly counts for any number of search strings, by using...
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PubMed publications in 2011 by 202 world countries: who’s the winner?
Tweet Introduction I had this idea that it’d be fun to look at all PubMed’s articles from 2011 and extract country affiliation for each individual country. So I set out to do just that, but in addition...
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Effect of sample size on the accuracy of Cohen’s d estimates (95 % CI)
Tweet Introduction I’ve been incredibly busy the last month, amongst other things I’ve moved about 400 miles from Umeå, in the north of sweden, to Stockholm. However, I’ve been working a lot with R and...
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The Higgs boson: 5-sigma and the concept of p-values
Tweet Today’s announcement at CERN of the latest research on the Higgs boson was truly extraordinary. Not only was the scientific achievement remarkable, but medias reporting of 5-sigma as a measure of...
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How to tell when error bars correspond to a significant p-value
Tweet Introduction Belia, Fidler, Williams, and Cumming (2005) found that researchers in psychology, behavior neuroscience and medicine are really bad at interpreting when error bars signify that two...
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Cognitive behavior therapy outperformed psychodynamic therapy on all outcomes...
Tweet Introduction The dodo bird verdict is the long held belief by some researchers and clinicians that all psychological interventions produce the same outcome. The proponents of this theory often...
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