The use of item statistics in the calibration of an item bank
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The use of item statistics in the calibration of an item bank
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1986
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Abstract
An IRT analysis based on p (proportion correct) and
r (item-test correlation) is proposed for a group of
tests having items in common. The procedure is a
generalization of a procedure proposed by De Gruijter
and Mooijaart (1983) which is related to procedures
for the factor analysis of dichotomous data. The procedure
results in IRT item parameters using data from
examinee groups with subsets of common items; it is,
therefore, particularly appropriate for calibrating items
for use in small-scale item banks. Simulated data are
used to illustrate the procedure.
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de Gruijter, Dato N. (1986). The use of item statistics in the calibration of an item bank. Applied Psychological Measurement, 10, 231-237. doi:10.1177/014662168601000302
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doi:10.1177/014662168601000302
Suggested citation
De Gruijter, Dato N. M.. (1986). The use of item statistics in the calibration of an item bank. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/102722.
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