A Short Form of the Revised Illinois Test of Psycholinguistic Abilities

Abstract

A short form of the ITPA was developed for use in research projects. Sample items were selected from each subtest so that all the psycholinguistic functions measured by the original test were included in the abbreviated version. Both the long and shortened tests were administered to 83 ‘normal’ children from the greater Philadelphia area, between the ages of 5 and 10. T-tests of differences between subtests mean scores on both versions were computed and were not statistically significant at the 5% level of confidence. Correlation coefficients between the long and shortened version of each subtest were also computed. In all but one instance (the Auditory Closure Subtest, correlated at .78) coefficients reached or exceeded the 80 lower level set as acceptable for alternate test reliability. Although these results indicated that the short form ITPA had sufficient reliability to be used for the purposes of research or screening, the authors recommend that the study be replicated on children of uniform chronological age before it is used in clinical settings.