SINRELEF.LD: Reliability and Relative Efficiency in Locally-Dependent
Measures
Implements an approach aimed at assessing the accuracy and
effectiveness of raw scores obtained in scales that contain locally dependent
items. The program uses as input the calibration (structural) item estimates
obtained from fitting extended unidimensional factor-analytic solutions in
which the existing local dependencies are included. Measures of reliability
(Omega) and information are proposed at three levels: (a) total score, (b)
bivariate-doublet, and (c) item-by-item deletion, and are compared to those
that would be obtained if all the items had been locally independent. All the
implemented procedures can be obtained from: (a) linear factor-analytic
solutions in which the item scores are treated as approximately continuous,
and (b) non-linear solutions in which the item scores are treated as
ordered-categorical. A detailed guide can be obtained at the following url.
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