Can genes predict criminal behavior?

The GLP aggregated and excerpted this blog/article to reflect the diversity of news, opinion and analysis.

The country has made unprecedented strides in the fight against crime. Both violent and non-violent crime are way down from their highs in decades past. This is great news, of course, but the success could easily lull us into a false sense of security, believing that we have the problem solved. Indeed, what if much of what we know about the causes of crime is either deeply flawed or flat out wrong?

Imagine the trial of a new drug for an ailment that is as intractable as it is lethal. Researchers find 100 people with the disease and give the new drug to the first 50 patients who show up to the clinic. The next 50 trial participants are placed into a control group and given no treatment. The drug has a truly shimmering success rate.

As you may have guessed, problems abound with this experimental design. For starters, because it isn’t randomized and because preexisting differences among the participants aren’t taken into account, the study can’t answer the question: Did the new drug cause anyone to get better? Such a study would be laughed out of the medical research community. And yet much of the knowledge concerning the causes of crime (as well as a host of other issues in the social sciences) stems from designs that aren’t much better than the poorly executed drug trial example.

Social scientists generally, and criminologists especially, often lack the ability (usually due to both ethical and practical concerns) to perform randomized controlled trials, the gold standard of research.

Read full, original post: Is crime genetic? Scientists don’t know because they’re afraid to ask

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