But the key to this experiment was what preceded it. When the participants first came to the lab, we asked some of them to write down the names of 10 books that they read in high school. The others were asked to write down as many of the Ten Commandments as they could recall.* After they finished this “memory” part of the experiment, we asked them to begin working on the matrix task.
This experimental setup meant that some of the participants were tempted to cheat after recalling 10 books that they read in high school, and some of them were tempted after recalling the Ten Commandments. Who do you think cheated more?
When cheating was not possible, our participants, on average, solved 3.1 problems correctly. When cheating was possible, the group that recalled 10 books read in high school achieved an average score of 4.1 questions solved (or 33 percent more than those who could not cheat).
But the big question is what happened to the other group—the students who first wrote down the Ten Commandments, then took the test, and then ripped up their worksheets. This, as sportscasters say, was the group to watch. Would they cheat—or would the Ten Commandments have an effect on their integrity? The result surprised even us: the students who had been asked to recall the Ten Commandments had not cheated at all. They averaged three correct answers—the same basic score as the group that could not cheat, and one less than those who were able to cheat but had recalled the names of the books.
As I walked home that evening I began to think about what had just happened. The group who listed 10 books cheated. Not a lot, certainly—only to that point where their internal reward mechanism (nucleus accumbens and superego) kicked in and rewarded them for stopping.
But what a miracle the Ten Commandments had wrought! We didn’t even remind our participants what the Commandments were—we just asked each participant to recall them (and almost none of the participants could recall all 10). We hoped the exercise might evoke the idea of honesty among them. And this was clearly what it did. So, we wondered, what lessons about decreasing dishonesty can we learn from this experiment? It took us a few weeks to come to some conclusions.
FOR ONE, PERHAPS we could bring the Bible back into public life. If we only want to reduce dishonesty, it might not be a bad idea. Then again, some people might object, on the grounds that the Bible implies an endorsement of a particular religion, or merely that it mixes religion in with the commercial and secular world. But perhaps an oath of a different nature would work. What especially impressed me about the experiment with the Ten Commandments was that the students who could remember only one or two Commandments were as affected by them as the students who remembered nearly all ten. This indicated that it was not the Commandments themselves that encouraged honesty, but the mere contemplation of a moral benchmark of some kind.
If that were the case, then we could also use nonreligious benchmarks to raise the general level of honesty. For instance, what about the professional oaths that doctors, lawyers, and others swear to—or used to swear to? Could those professional oaths do the trick?
The word profession comes from the Latin professus, meaning “affirmed publicly.” Professions started somewhere deep in the past in religion and then spread to medicine and law. Individuals who had mastered esoteric knowledge, it was said, not only had a monopoly on the practice of that knowledge, but had an obligation to use their power wisely and honestly. The oath—spoken and often written—was a reminder to practitioners to regulate their own behavior, and it also provided a set of rules that had to be followed in fulfilling the duties of their profession.
Dan Ariely
The (honest) truth about dishonesty
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