Multilingualism Research Forum/Flerspråklighetsforum: The Comprehensive Aphasia Test across languages: insights from Norwegian and Croatian
Ana Matić Škorić (Postdoctoral Researcher, University of Zagreb) will discuss the Comprehensive Aphasia Test across languages.
Ana Matić Škorić
Aphasia symptoms depend on a range of factors, such as the severity, cause, location and size of the lesion, time post onset, and individual’s age, education, and prior language competence (Eng & Kerman Lerner, 2010; Plowman et al., 2012). These factors interact and impact the course of therapy, so it is important to obtain a comprehensive language profile of the individual. Besides, more than half of the world's population is bilingual or multilingual, so there is an urgent need to understand the characteristics of aphasia symptoms in these individuals, and to ensure appropriate assessment and treatment (Goral & Hejazi, 2021).
Nevertheless, developing multilingual tests is very challenging for a number of reasons. The need for a reliable and comparable assessment tool across countries was recognized by Working Group 2 within the Collaboration of Aphasia Trialists. Its members agreed to adapt the Comprehensive Aphasia Test - CAT (Swinburn et al., 2004) into their respective languages. Recently, CAT-N (Swinburn, Porter, Howard, Høeg et al., 2021) and CAT-HR (Swinburn, Porter, Howard, Kuvač Kraljević et al., 2020) were normed in Norwegian and Croatian.
Since analogous (psycho)linguistic and psychometric decisions were made during test development (Fyndanis et al., 2017), the two tests are expected to be comparable. To examine their comparability, performance on 10 subtests of the Language Battery was compared between the two samples (N group = 71) with equal distribution in terms of age, educational level, and aphasia severity.
The conducted analyses revealed a few differences, with the Norwegian sample achieving slightly higher overall results. Interestingly, more specific analyses revealed the main effect of aphasia severity on all dependent variables (individual subtests), while the effect of language was found only in a few subtests. The obtained findings will be discussed with respect to the differences in structural features of the two languages, and concrete research and clinical implications will be emphasized.
Ana Matić Škorić is a postdoctoral researcher at the Department of Speech and Language Pathology (SLP), Faculty of Education and Rehabilitation Sciences, University of Zagreb. She has an MA in SLP and a PhD in Linguistics. Her main research activities revolve around speakers with typical development as well as developmental and acquired language disorders. She has been or is currently involved in 8 national and international projects funded by the CSF, COST or EU structural and investment funds. She has published over twenty papers and book chapters (with 5 in publication), and co-authored two tests for the assessment of language. She received a competitive DAAD scholarship to visit the University of Konstanz in 2019/2020, as well as several STSMs (visits to different European universities) and was acknowledged as a highest achieving young researcher at her faculty in 2019.