Morphology and Developmental Language Disorders: New Tools for Russian

We describe preliminary data from two studies aimed at investigating the psychometric properties and validity of newly developed measures of morphological knowledge and skills in Russian, namely, the Word Structure subtest, and the Test of Morphological Awareness, in two samples of young Russian-speaking children. Overall, both instruments demonstrated good psychometric properties when analyzed using both classical test theory and a Rasch-modeling IRT approach, and were positively associated with the criterion measures (i.e., the number of grammatical errors in elicited speech samples, spelling, and reading comprehension).