participant

n. a person who takes part in an investigation, study, or experiment, such as by performing tasks set by the experimenter or by answering questions set by a researcher. In an experimental design, the person may be further identified as an experimental participant (see experimental group) or a control participant (see control group). Participants may also be referred to as subjects, particularly by those who wish to avoid the implication that experimentees are involved in the construction, design, conduct, and analysis of the experiment. See also respondent.

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Psychology term of the day

November 18th 2024

predictive validity

evidence that a test score or other measurement correlates with a variable that can only be assessed at some point after the test has been administered or the measurement made. For example, the predictive validity of a test designed to predict the onset of a disease would be strong if high test scores were associated with individuals who later developed that disease. It is one of three types of criterion validity. Also called predictive criterion-related validity; prospective validity. See also concurrent validity; retrospective validity.