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German Communicative Development Inventory

An Adaptation of the MacArthur-Bates Communicative Development Inventory for Toddlers

Gisela Szagun, Barbara Stumper and Satyam Antonio Schramm

This research presents a German adaptation of the American MacArthur-Bates Commmunicative Inventory (CDI) for toddlers, with the addition of a detailed inflectional morphology scale. The name of the instrument is FRAKIS (Fragebogen zur frühkindlichen Sprachentwicklung). The research presents the first norm data of early language development for German-speaking children. Results of the study confirm the enormous variability in early language development found in other languages for German. There was also a strong relation between lexical and grammatical development, including between specific lexical and grammatical areas. The instrument FRAKIS is an excellent tool for assessing language level in young children, be it for research purposes or in clinical settings.
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5 Interrelations among language measures

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Interrelations between the different language measures were tested by correlational analyses. Bivariate and partial correlations (Pearson) were calculated. In order to examine if the effect is due to the relation between the language measures independent of age, the effect of age was partialed out.

5.1 Relations between ratings and scale measures

First, we examined if parents’ ratings of children’s use of plurals, articles, present tense verb forms and participle forms corresponded to parents’ judgements regarding the same forms in answer to the yes/no questions asked in the subscale task of inflectional morphology.

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