Video Games, Violence, Media, and Suicide
The effects of media may be small, but they are not irrelevant.
Posted Aug 26, 2019
Does it matter what we watch, or what sort of media we consume? This question has been debated in various forms.
One particularly heated topic, especially in psychology, has been whether violent video games lead to greater levels of aggressive behaviors. Some studies have indicated yes; others have suggested no.
The existing meta-analyses, which attempt to aggregate all of the available data and studies, are themselves divided. What is one to think?
Trying to Resolve the Disputes
At the Human Flourishing Program at Harvard, we aim to make use of sophisticated statistical methods to help address these sorts of controversies. In the case of the meta-analyses on video game violence, some of the problems have been an exclusive focus on just the “statistical significance” of the estimates; one meta-analysis indicates “yes, statistical significance,” and another not.
The problem may be that there is not a single answer; video game violence may matter in some circumstances, but not in others. The effects may be heterogeneous. Earlier this year, we, published new metrics for assessing meta-analyses that better account for such heterogeneity.
When these new approaches were applied to the question of video game violence, we were able to show that, although there are indeed some disagreements across the competing meta-analyses, there is also a lot of agreement. (See our paper published last month in Perspectives on Psychological Science for technical details).
Specifically, the meta-analyses, including those that claim “statistical significance” and also those that do not, indicate, when using our metrics, that in the vast majority of circumstances, video game violence does increase aggressive behavior, but in almost all such contexts, the average effects are relatively modest.
Thus, video game violence does seem to increase aggressive behavior, by at least a little. But the various meta-analyses also agree that violent video games would rarely increase the likelihood of high levels of aggressive behavior by 40 percent.
Some disagreements remain, such as in how many contexts (e.g., different types of games) playing these games increases the likelihood of high levels of aggressive behavior by 20 percent-40 percent. But the data from all these studies seem to agree that there are usually at least small detrimental effects.
So… does this matter in practice? Sometimes these video game studies are criticized for the fact that they really tell us nothing about longer-term outcomes, and this is indeed mostly true.
Most of the experimental studies carried out in laboratory settings only assess very short-term effects of playing, versus not playing, a violent video game on one particular occasion. However, small effects, across millions of people, can add up.
Moreover, if one is to take theories of character development seriously, then character and behaviors are shaped by the formation of habits and repeated actions across many settings. This would suggest that if violent video games are played frequently, as indeed they often are, this might have at least some effects on one’s character. The effects on an individual occasion are almost certainly small, but, over many occasions, they might be non-negligible.
There has been a recent discussion as to whether violent video games might play a role in bringing about mass shootings, with many of the media reports claiming that scientific research had disproved this. Our research was even cited in a recent New York Times piece about this very question.
But as indicated above, one limitation of the data is that the most rigorous studies are done in lab settings, and long-term outcomes are not measured. Although the lab data suggests that effects on average are small, small effects on average are compatible with effects that are, for particular individuals, large or determinative.
It is unlikely, however, that being randomized to play a violent video game, on one specific occasion, is going to lead to a mass shooting. Thus, laboratory experiments do not really provide the right type of data to sort out how important video game violence may, or may not, be in giving rise to mass shootings.
The media reports which claim that video game violence plays no role in mass shootings are not justified; but nor are the media reports that blame the shootings on video games. The truth is that we simply do not know. The right studies have not been done.
Even our more nuanced analyses are compatible with video game violence playing an important role in a mass shooting, and compatible with their being entirely irrelevant. A different type of study (e.g., which assessed violent video game practices retrospectively for those who carried out mass shootings and how that compared with the general population, controlling for other variables) would be needed.
Some of these considerations are also relevant to other forms of media. There has been a recent debate on whether media portraying suicide might increase the likelihood, for those viewing, of attempting suicide themselves. Once again, our new metrics can be helpful.
Our research on the topic of suicide was recently published in JAMA Psychiatry and indicated that in about two-thirds of the settings (different movies, television shows, etc.), the media portrayal of suicide increased subsequent suicide rates, but that in about one in five settings, the portrayal may have even had moderate protective effects, though considerably less often than they were detrimental.
Again, the effects are relatively small, but small effects across many people can add up. For example, another recent analysis in JAMA Psychiatry indicated that the release of the Netflix series 13 Reasons Why, which portrays a young girl’s suicide, resulting in excess of 103 adolescent suicides, even after controlling for prior temporal and seasonal trends. It would seem not a good idea here to say because study effects are “small,” these 103 adolescents who took their own life do not matter.
A Better Way Forward for Flourishing
The results of these various studies certainly do not imply we should resort to some form of extreme censorship or impose restrictions on freedom of speech. However, we do think the evidence concerning the effects of various forms of media should be made clear, and producers should at least be aware of it when making decisions.
Moreover, from the consumer’s perspective, while the effects are mostly small, there are, of course, numerous ways to make use of one’s leisure time. A focus on what is good, admirable, and noble may be more conducive to flourishing than playing violent video games or watching media depictions of suicide.
Mathur, M. and VanderWeele, T.J. (2019). Finding common ground in meta-analysis “wars” on violent video games. Perspectives on Psychological Science, 14:705-708.
VanderWeele, T.J., Mathur, M.B., and Chen, Y. Media portrayals and public health implications for suicide and other behaviors. JAMA Psychiatry, Published online May 29, 2019. doi:10.1001/jamapsychiatry.2019.0842.
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