For the external-anchor test equating model, two
observed-score methods are derived using the slope
and intercept assumptions of univariate selection theory
and the assumptions that the tests to be equated
are congeneric ...
This paper explores the use of Jöreskog’s (1970)
congeneric modeling approach to reliability using censored
quantitative variables, and discusses the compound
problem of non-normality and attenuation that
occurs when ...
The characteristics of unidimensional ability estimates
obtained from data generated using multidimensional
compensatory models were compared with estimates
from noncompensatory IRT models. Reckase,
Carlson, Ackerman, ...
The fact that difference scores tend to be less reliable
than the original measurements from which they
are calculated should not be a matter of concern in
testing the significance of treatment-induced change.
The ...
Humphreys and Drasgow (1989b) recognize two
types of dependent variables: the original measurements
collected in an experiment and mathematical
variables that are subjected to statistical analysis.
Overall and Woodward ...
