Three researchers have developed a novel method to consider that question: they analyzed the research output of experts who filed a brief in a U.S. Supreme Court case involving violent video games and teens.
Their conclusion? Experts who say violent video games are harmful to teens have published much more evidence supporting their claims than have experts on the other side of the debate.
"We took what I think is a very objective approach: we looked at the individuals on both sides of the debate and determined if they actually have expertise in the subjects in which they call themselves experts," said Brad Bushman, co-author of the study and professor of communication and psychology at Ohio State University.
"The evidence suggests that those who argue violent video games are harmful have a lot more experience and stronger credentials than those who argue otherwise."
Bushman conducted the study with Craig Anderson, professor of psychology at Iowa State University, and Deana Pollard Sacks, professor of law at Texas Southern University. Their research will be published in May in the Northwestern University Law Review Colloquy.
Their study involved Schwarzenegger v. Entertainment Merchants Association, a case before the U.S. Supreme Court that will decide whether the state of California can ban the sale or rental of violent video games to children under 18. The court is expected to rule on the case this summer.
In this case, groups supporting and opposing the law have filed what are called briefs of amicus curiae. These are briefs by people or groups who are not involved directly in the case, but want to offer the court their expert opinion on the issues involved.
The researchers analyzed the credentials of the 115 people who signed the Gruel brief, who believe video violence is harmful, and the 82 signers of the Millett brief, who believe video violence is not harmful. (The briefs are named after the lead attorneys for each side.)
The data for the study came from the PsycINFO database, which provides more than 3 million references to the psychological literature from the 1800s to the present, including peer-reviewed journal articles, book chapters or essays, and books.
For each of the signers of the two briefs, the researchers calculated how many articles and books they published on issues relating to violence and aggression in general and on media violence specifically.
The results showed that 60 percent of the Gruel brief signers (who believe video game violence is harmful) have published at least one scientific study on aggression or violence in general, compared to only 17 percent of the Millett brief signers.
Moreover, when the researchers looked specifically at the subject of media violence, 37 percent of Gruel brief signers have published at least one study in that area, compared to just 13 percent of the Millett brief signers.
In a further analysis, Bushman and Anderson examined where the signers of both briefs have published their research. The best academic journals have the highest standards and the most rigorous peer review, so only the best research should be published there, Bushman said.
The researchers used a well-established formula, called the impact factor, to determine the top-tier journals, and then calculated how many signers had published in these journals.
Results showed that signers of the Gruel brief had published over 48 times more studies in top-tier journals than did those who signed the Millett brief.
"That's a staggering difference," Bushman said. "It provides strong support for the argument that video game violence is indeed harmful."
Bushman said he and his colleagues did this study because they wanted to show that there is a way for the Supreme Court to evaluate the contradictory evidence it has been presented.
"The justices were presented with two briefs, arguing opposite sides, and they may think the contradictory briefs simply cancel each other out," Bushman said.
"We just wanted to point out to the justices that not all briefs are the same. In this case, the credentials and experience of those who signed the Gruel brief far exceeds that of the ones who signed the Millett brief."
Brad Bushman | EurekAlert!
New study: How does Europe become a leading player for software and IT services?
03.04.2017 | Fraunhofer-Institut für System- und Innovationsforschung (ISI)
Reusable carbon nanotubes could be the water filter of the future, says RIT study
30.03.2017 | Rochester Institute of Technology
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits -- or qubits -- that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.
In pursuit of this goal, researchers at EPFL's Laboratory of Photonics and Quantum Measurements LPQM (STI/SB), have investigated a nonlinear graphene-based...
Dental plaque and the viscous brown slime in drainpipes are two familiar examples of bacterial biofilms. Removing such bacterial depositions from surfaces is...
For the first time, scientists have succeeded in studying the strength of hydrogen bonds in a single molecule using an atomic force microscope. Researchers from the University of Basel’s Swiss Nanoscience Institute network have reported the results in the journal Science Advances.
Hydrogen is the most common element in the universe and is an integral part of almost all organic compounds. Molecules and sections of macromolecules are...
22.05.2017 | Event News
17.05.2017 | Event News
16.05.2017 | Event News
22.05.2017 | Materials Sciences
22.05.2017 | Life Sciences
22.05.2017 | Physics and Astronomy