uniteap
The unit for the estimated conditional expected (expected a priori or EAP) value of
given
, j in
and
and the estimated covariance matrix of
given
, j in
, and
for each examinee i, where
is a subset of
that may be equal to
(Bock & Aitkin, 1981; Haberman & Sinharay, 2010). In listening1.txt, uniteap is 11. The corresponding file is listeningeap.csv. Because the latent variable has dimension 1 in this example and because observations do not have identifiers such as customer numbers, the three columns consist of a sequence number, an EAP ("Mean_Listening") and an estimated conditional variance ("Cov_Listening_Listening") of the latent variable given the item responses. Note that the conditional covariance of Listening and Listening shown in the output is obviously the same as the conditional variance of Listening.