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scoreMetric

Sum score metric


Description

From a set of estimated item parameters, compute an item response function in sum score metric, i.e., the probabilities of a correct response predicted by the model at abilities corresponding to the possible (raw) sum scores.

Usage

scoreMetric(ip)

Arguments

ip

Item parameters: the output of est, or a 3-column matrix corresponding to its first element, est.

Value

An object with the same structure as the output of irf

Author(s)

Ivailo Partchev


irtoys

A Collection of Functions Related to Item Response Theory (IRT)

v0.2.1
GPL (>= 2)
Authors
Ivailo Partchev [aut, cre], Gunter Maris [aut], Tamaki Hattori [ctb]
Initial release
2017-12-15

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