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natural experiment

the study of a naturally occurring situation as it unfolds in the real world. The researcher does not exert any influence over the situation but rather simply observes individuals and circumstances, comparing the current condition to some other condition. For example, an investigator might evaluate the influence of a new community policing program by observing neighborhood activities after it has been implemented and comparing the outcome to that for neighborhoods in which the policy has not been implemented. Since such real-life events cannot be manipulated or prearranged, natural experiments are quasi-experimental designs rather than true experiments. Also called naturalistic design; naturalistic research.

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Psychology term of the day

May 4th 2024

heterochrony

heterochrony

n.

1. a difference in the rate of two processes, such as the conduction of nerve impulses.

2. any evolutionary change in the relative time of appearance of maturational features or events or in the rate of development of an organism. Also called heterochronia.