Using simulation results to choose a latent trait model
1981
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Using simulation results to choose a latent trait model
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1981
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Abstract
A latent trait model goodness-of-fit statistic was
defined, and its relationships to several other commonly
used fit statistics were described. Simulation
data were used to examine the behavior of these fit
statistics under conditions similar to those found
with real data. The simulation data were generated
for 36 pseudo-items and 1,000 simulees using three-,
two-, and one-parameter logistic latent trait
models. The data were analyzed using three-,
two-, and one-parameter models. Between-model
comparisons were made of the fit statistics, trait estimates,
and item parameter estimates. The three
generating models produced clearly different patterns
of results. The simulation results were compared
to results for real data involving seventh- and
eighth-grade students’ performance on eight
achievement tests. The achievement test results appeared
most similar to the simulation results based
on data generated with the three-parameter model.
Some practical problems that can result from using
an inappropriate model with multiple-choice tests
are discussed.
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Yen, Wendy M. (1981). Using simulation results to choose a latent trait model. Applied Psychological Measurement, 5, 245-262. doi:10.1177/014662168100500212
Suggested citation
Yen, Wendy M.. (1981). Using simulation results to choose a latent trait model. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/100381.
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