psychology

It seems that in psychology and communication, as in other fields of social science, much of what we think we know may be based on a tenuous empirical foundation.

“Psychology emergency” by atomicity (Flickr).

Concerns have been raised about the integrity of the empirical foundation of psychological science, such as low statistical power, publication bias (i.e. an aversion to reporting statistically nonsignificant or “null” results), poor availability of data, the rate of statistical reporting errors (meaning that the data may not support the conclusions), and the blurring of boundaries between exploratory work (which creates new theory or develops alternative explanations) and confirmatory work (which tests existing theory). It seems that in psychology and communication, as in other fields of social science, much of what we think we know may be based on a tenuous empirical foundation. However, a number of open science initiatives have been successful recently in raising awareness of the benefits of open science and encouraging public sharing of datasets. These are discussed by Malte Elson (Ruhr University Bochum) and the OII’s Andrew Przybylski in their special issue editorial: “The Science of Technology and Human Behavior: Standards, Old and New”, published in the Journal of Media Psychology. What makes this issue special is not the topic, but the scientific approach to hypothesis testing: the articles are explicitly confirmatory, that is, intended to test existing theory. All five studies are registered reports, meaning they were reviewed in two stages: first, the theoretical background, hypotheses, methods, and analysis plans of a study were peer-reviewed before the data were collected. The studies received an “in-principle” acceptance before the researchers proceeded to conduct them. The soundness of the analyses and discussion section were reviewed in a second step, and the publication decision was not contingent on the outcome of the study: i.e. there was no bias against reporting null results. The authors made all materials, data, and analysis scripts available on the Open Science Framework (OSF), and the papers were checked using the freely available R package statcheck (see also: www.statcheck.io). All additional (non-preregistered) analyses are explicitly labelled as exploratory. This makes it easier to see…

New research suggests that very few of those who play internet-based video games have symptoms suggesting they may be addicted.

New research by Andrew Przybylski (OII, Oxford University), Netta Weinstein (Cardiff University), and Kou Murayama (Reading University) published today in the American Journal of Psychiatry suggests that very few of those who play internet-based video games have symptoms suggesting they may be addicted. The article also says that gaming, though popular, is unlikely to be as addictive as gambling. Two years ago the APA identified a critical need for good research to look into whether internet gamers run a risk of becoming addicted and asked how such an addiction might be diagnosed properly. To the authors’ knowledge, these are the first findings from a large-scale project to produce robust evidence on the potential new problem of “internet gaming disorder”. The authors surveyed 19,000 men and women from nationally representative samples from the UK, the United States, Canada and Germany, with over half saying they had played internet games recently. Out of the total sample, 1% of young adults (18-24 year olds) and 0.5% of the general population (aged 18 or older) reported symptoms linking play to possible addictive behaviour—less than half of recently reported rates for gambling. They warn that researchers studying the potential “darker sides” of Internet-based games must be cautious. Extrapolating from their data, as many as a million American adults might meet the proposed DSM-5 criteria for addiction to online games—representing a large cohort of people struggling with what could be clinically dysregulated behaviour. However, because the authors found no evidence supporting a clear link to clinical outcomes, they warn that more evidence for clinical and behavioural effects is needed before concluding that this is a legitimate candidate for inclusion in future revisions of the DSM. If adopted, Internet gaming disorder would vie for limited therapeutic resources with a range of serious psychiatric disorders. Read the full article: Andrew K. Przybylski, Netta Weinstein, Kou Murayama (2016) Internet Gaming Disorder: Investigating the Clinical Relevance of a New Phenomenon.…