The validity of the Greek version of the Communicative Effectiveness Index (CETI-GR) for Cypriot people with chronic aphasia

Abstract

The Communication Effectiveness Index (CETI) is a short questionnaire that assesses functional communicative abilities of the people with aphasia (PWA) based on their carer’s opinion. The adaptation of the CETI into Greek not only provides an opportunity to evaluate the functional communication abilities of PWA through their carers but also serves as a valuable instrument for clinicians to establish more effective therapeutic objectives. The aim of the study was to evaluate the validity of the Greek version of the CETI (CETI-GR). A cross-sectional study was carried out. The CETI was already translated and adapted by Charalambous and Kambanaros (2020) into Standard Modern Greek. Thirty PWA and their respective carers were included in the study. Correlational analysis (Spearman’s rho) was undertaken to test the convergent validity of the measure. A selection of measures related to validating the CETI-GR included language, depression, functional communication, and aphasia-impact-related tools that are validated in Greek. With the exemption of depression tool (ρ = -0.322, p = 0.08), the CETI-GR correlated significantly with a measure of aphasia severity (ρ = 0.574, p < 0.001), an aphasia-impact questionnaire (ρ = 0.461, p < 0.001), and a tool measuring functional communication (ρ = 0.642, p < 0.001). The current study demonstrates that the CETI-GR is a valid instrument for assessing the functional communication abilities of Greek-speaking PWA in everyday social interactions.