A comparison of item calibration media in computerized adaptive testing
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A comparison of item calibration media in computerized adaptive testing
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1994
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Abstract
A concern in computerized adaptive testing is
whether data for calibrating items can be collected
from either a paper-and-pencil (P&P) or a computer administration
of the items. Fixed blocks of power test
items were administered by computer to one group of
examinees and by P&P to a second group. These data
were used to obtain computer-based and P&P-based
three-parameter logistic model parameters of the
items. Then each set of parameters was used to estimate
item response theory pseudo-adaptive scores for
a third group of examinees who had received all of the
items by computer. The effect of medium of administration
of the calibration items was assessed by comparative
analyses of the adaptive scores using
structural modeling. The results support the use of
item parameters calibrated from either P&P or computer
administrations for use in computerized adaptive
power tests. The calibration medium did not appear to
alter the constructs measured by the adaptive test or
the reliability of the adaptive test scores Irndex.
terms: computerized adaptive testing, item calibration,
item parameter estimation, item response theory, medium
of administration, trait level estimation.
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Hetter, Rebecca D, Segall, Daniel O & Bloxom, Bruce M. (1994). A comparison of item calibration media in computerized adaptive testing. Applied Psychological Measurement, 18, 197-204. doi:10.1177/014662169401800301
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doi:10.1177/014662169401800301
Suggested citation
Hetter, Rebecca D.; Segall, Daniel O.; Bloxom, Bruce M.. (1994). A comparison of item calibration media in computerized adaptive testing. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/117062.
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