two-parameter model

in item response theory, a model that specifies two parameters affecting an individual’s response to a particular test item: (a) the difficulty level of the item and (b) the item discriminability. See also Rasch model; three-parameter model.

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Psychology term of the day

September 8th 2024

reproducibility

reproducibility

n. the extent to which a study produces the same findings when it is conducted by a different independent researcher. A given research finding is thought to be stronger when it can be both repeated and reproduced. See repeatability; replication.