Larrick (2004; pdf) offers a small number of suggestions for strategies to diminish bias in decision making, which he breaks down into four categories.
"Consider the opposite". Tell decision-makers to ask themselves "What are some reasons my initial judgment might be wrong?"
Training in rules. Teach statistical and logical principles to decision-makers, e.g. give them lessons on the law of large numbers and regression toward the mean.
Training in representations. Teach decision-makers to represent problems in ways that are likely to ameliorate biases. For instance, encourage decision-makers to represent problems in terms of frequencies rather than probabilities, since evidence suggests people reason more accurately when thinking about the former than about the latter.
Training in biases. Larrick suggests that this boils down to seeing if teaching decision-makers behavioral decision theory has positive effects. Larrick implies that so far there is little evidence to suggest this method would work.
- What other plausible categories of cognitive strategies exist?
- What other strategies exist within the categories Larrick has defined?
- Larrick, R.P. (2004). Debiasing. Blackwell handbook of judgment and decision making, , 316-338. PDF