The production and perception of randomness

This article contains a discussion of the elusive nature of the concept of randomness, a review of findings from experiments with randomness production and randomness perception tasks, and a presentation of theoretical treatments of people's randomization capabilities and limitations. The importance of task instructions and the difficulty of interpreting results when instructions are vague or ambiguous are stressed. The widely held view that people are incapable of generating or recognizing randomness is shown to lack the strong experimental support that has sometimes been claimed for it.