This study tested the theoretical model underlying
the Revised Illinois Test of Psycholinguistic
Abilities (ITPA). The ITPA model is a hierarchical
factor model which includes five first-order factors
(Receptive Process, Organizing Process, Expressive
Process, Closure, and Sequential Memory); two second-order factors (Representational Level and
Automatic Level); and one third-order factor (Psycholinguistic
Ability). Results from correlated
multiple-group component analyses of the ITPA subtest
intercorrelations for each age group in the
standardization sample provided strong support for
the theoretical model.
Ramanaiah, Nerella V, O'Donnell, James P & Adams, Michael. (1978). A test of the theoretical model of the Revised Illinois Test of Psycholinguistic Abilities. Applied Psychological Measurement, 2, 519-525. doi:10.1177/014662167800200406
Ramanaiah, Nerella V.; O'Donnell, James P.; Adams, Michael.
A test of the theoretical model of the Revised Illinois Test of Psycholinguistic Abilities.
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