A scale of impact for 95 life change events was
determined from a sample of 4 ethnic groups. Fifty-one
of these events fit a Rasch model and had the
same impact in all four groups (sample free item
calibration). The ...
Recently it was suggested that the Bayes risk
might be used to characterize tests. To conform to
common practices about indexes, a rescaling of the
Bayes risk was proposed. The motivation for this
new coefficient, d, ...
This study empirically investigated equations for
estimating the value of the multiple correlation coefficient
in the population underlying a sample and
the value of the population validity coefficient of a
A latent trait measurement model in which
ordered response categories are both parameterized
and scored with successive integers is investigated
and applied to a summated rating or Likert questionnaire.
In addition to ...
The nature of individual inconsistency in performance
on trait measurements is an important
topic in psychometrics because of its direct relevance
to measurement reliability. Several studies
have supported short-term ...