As an alternative to equipercentile equating in the
area of multilevel achievement test batteries, item
response theory (IRT) vertical equating has
produced unexpected results. When expanded standard
scores were obtained ...
In a typical study involving covariance structure
modeling, fit of a model or a set of alternative
models is evaluated using several indicators of fit
under one estimation method, usually maximum
likelihood. This study ...
The concept of information functions developed
for dichotomous item response models is adapted
for the partial credit model. The information function
is explained in terms of the model parameters
and scoring functions. ...
Statistical methods developed over the last
decade for detecting measurement bias in psychological
and educational tests are reviewed. Earlier
methods for assessing measurement bias generally
have been replaced by more ...
Previous attempts at incorporating expert test
construction practices into computerized adaptive
testing paradigms are described. A new method is
presented for incorporating a large number of constraints
on adaptive ...