Which statement best describes two common cognitive biases, the availability heuristic and the representativeness heuristic?

Which statement best describes two common cognitive biases, the availability heuristic and the representativeness heuristic?

• A. Availability heuristic judges likelihood by what is most readily recalled; Representativeness heuristic stereotypes based on similarity.
• B. Representativeness heuristic is about the availability of information.
• C. Both biases are the same.
• D. Both biases refer to statistical calculations.

Answer: (A)

The question focuses on two well-known mental shortcuts in judgment: the availability heuristic and the representativeness heuristic. The best description is that the availability heuristic judges how likely something is based on how easily you can recall it, while the representativeness heuristic judges probability based on how similar something is to a typical case or stereotype. Think of the availability side: if you can quickly recall dramatic or recent events, you might overestimate how common they are. This happens because memory fluency makes certain examples feel more probable. For the representativeness side: you judge something by how much it resembles a familiar category or prototype, often ignoring actual base rates or statistical likelihood. People might assume a person with quiet, bookish traits fits a stereotypical librarian rather than a farmer, even if base-rate information would suggest otherwise. These characterizations distinguish the two biases as separate mental shortcuts, rather than a single thing or a statistical calculation. The other options blur or misstate the concepts—for example, treating representativeness as the same as availability, or claiming both are about statistical calculations.

The question focuses on two well-known mental shortcuts in judgment: the availability heuristic and the representativeness heuristic. The best description is that the availability heuristic judges how likely something is based on how easily you can recall it, while the representativeness heuristic judges probability based on how similar something is to a typical case or stereotype.

Think of the availability side: if you can quickly recall dramatic or recent events, you might overestimate how common they are. This happens because memory fluency makes certain examples feel more probable. For the representativeness side: you judge something by how much it resembles a familiar category or prototype, often ignoring actual base rates or statistical likelihood. People might assume a person with quiet, bookish traits fits a stereotypical librarian rather than a farmer, even if base-rate information would suggest otherwise.

These characterizations distinguish the two biases as separate mental shortcuts, rather than a single thing or a statistical calculation. The other options blur or misstate the concepts—for example, treating representativeness as the same as availability, or claiming both are about statistical calculations.