In an experiment, subjects predicted they scored 100% on a spelling test. The actual average score was 80%. These findings reflect the behavioral bias of:
A) hallowed by thy name.
B) ancillary bias.
C) hyperbolic discounting.
D) overconfidence.

Question

Quizplus · Accepted Answer

This is an example of overconfidence bias, where individuals tend to overestimate their abilities or predictions. In this case, the subjects were overconfident in their prediction of scoring 100% on the spelling test, when in reality the average score was only 80%.

In an Experiment, Subjects Predicted They Scored 100% on a Spelling