Richard Nisbett

Richard Nisbett appears in the book as a social psychologist whose research with his student Eugene Borgida tests whether psychological knowledge actually changes people’s beliefs. Their studies show that students can repeat the official interpretation of a surprising experiment while quietly exempting themselves and ordinary acquaintances from its implications. Nisbett’s work therefore gives concrete form to a central problem in judgment: general statistics are often weaker guides to belief than vivid individual cases that can be fitted into a causal story.

Identity and Research Setting

Nisbett conducted the relevant experiment with Eugene Borgida at the University of Michigan. Their subject was the renowned helping experiment carried out a few years earlier at New York University, where participants spoke about personal problems over an intercom from individual booths. Six people took part in each group, although one was a stooge working from a script. The design placed ordinary participants in a situation where responsibility for another person’s welfare was shared across several unseen listeners.

The stooge first described his difficulty adjusting to New York and disclosed that he was prone to seizures, particularly under stress. After every participant had spoken, the stooge became agitated, said that a seizure was coming, and asked for help. His final words suggested that he might be dying, after which the next participant’s microphone became active and nothing more was heard from the apparently stricken man. The experiment had been constructed to reveal how the presence of other potential helpers could reduce any one person’s sense of personal responsibility.

The Question of Learning

Nisbett and Borgida asked whether students who learned the results of this experiment would revise their beliefs about how decent people behave in emergencies. Most people imagine that they themselves would immediately help a stranger suffering a seizure, especially if they were alone with the victim. The experiment’s low helping rate contradicts that self-image, but merely hearing the statistical result did not reliably overcome it.

Students could recall the procedure and repeat the accepted explanation in terms of diffusion of responsibility. They could even state that the social situation made normal people less helpful. Yet when shown brief, bland interviews with two alleged participants, they judged the interviewees to be nice, conventional people and predicted that each would have helped quickly. Their judgments revealed that the students had not incorporated the experiment’s lesson into their expectations about particular individuals or themselves.

The pattern was especially revealing because the students did not reject the experiment as irrelevant or misunderstand its procedure. They accepted the general fact while preserving their prior view of human nature. Nisbett and Borgida thus distinguished verbal learning from transformed understanding: possessing a fact is not the same as using it when judging a person or imagining one’s own conduct.

General Statistics and Individual Cases

The researchers then taught a new group the procedure without telling them the overall results. After the students watched the two interviews, they were told only that the two people shown had failed to help the stranger and were asked to estimate the results for the entire study. Their guesses were extremely accurate. The students generalized immediately from the two vivid cases to the broader population.

This reversal produced the study’s most memorable conclusion: subjects’ unwillingness to deduce the particular from the general was matched only by their willingness to infer the general from the particular. A surprising statistical fact had left the first group’s assumptions largely intact, whereas two individual cases involving apparently decent people forced the second group to construct a causal explanation. The personal examples created an incongruity that had to be resolved, and the resulting explanation made the broader lesson psychologically available.

Nisbett and Borgida also reported similar resistance when students were taught another study showing that mild social pressure could lead people to accept much more painful electric shocks than expected. The recurrence suggested that the difficulty was not peculiar to helping behavior. People resist conclusions that threaten established beliefs about themselves and their friends, particularly when those conclusions remain abstract and statistical.

Significance for Psychology and Judgment

The research has implications for teaching psychology. In the book’s larger account, people often answer difficult questions by substituting easier ones, rely on stories that feel coherent, and underuse merely statistical base rates. Nisbett and Borgida’s findings show how those tendencies operate in the learning of psychology itself. Students may know the declared interpretation of an experiment yet fail to apply it to a random stranger because their intuitive model of a decent person remains unchanged.

Their work also clarifies why causal information has greater force than bare statistical information. A low rate of helping can be understood as a population statistic, but diffusion of responsibility explains how the situation affects an individual who is surrounded by other possible helpers. Even so, causal statistics may not dislodge beliefs rooted in personal experience. A surprising person, by contrast, supplies an immediate case that demands explanation and can be embedded in a causal story.

Nisbett’s place in the book is therefore not that of a biographical protagonist with a narrated personal arc, but of a researcher whose experiment sharpens the book’s central distinction between knowing and understanding. His collaboration with Borgida demonstrates that psychological insight is learned only when it changes predictions about situations encountered in the world. The most effective lesson is not the one students can recite, but the one that makes their former confidence about themselves impossible to maintain.