Validity and reliability of the Intelligibility in Context Scale: European Portuguese version.

Validity and reliability of the Intelligibility in Context Scale: European Portuguese version. Clin Linguist Phon. 2019 Apr 09;:1-14 Authors: Lousada M, Sa-Couto P, Sutre D, Figueiredo C, Fazenda M, Lousada MJ, Valente AR Abstract The purpose of the study was to evaluate the validity, reliability, sensitivity and specificity of the European-Portuguese version of the Intelligibility in Context Scale (ICS-EP). Seventy-six children (age: M = 60.6, SD = 8.1 months), 25 having a parent or teacher concern about how they talked and 51 with no concern, were assessed with the phonetic-phonological test (TFF-ALPE) to calculate the following severity measures: percentage of phonemes correct (PPC), percentage of consonants correct (PCC), and percentage of vowels correct (PVC). Parents also filled out a questionnaire about their child's development (e.g. concern about how the child talks). The ICS was then completed by parents to estimate their children's intelligibility with different communicative partners. The results showed that item-level scores were different according to communicative partners. The mean ICS score for the whole sample was 4.5 (SD = 0.6), showing that children were "usually" to "always" intelligible. The ICS had excellent internal consistency (α = 0.96). Children with parental concern about their speech presented significantly lower mean scores (M = 3.91, SD = 0.59) than children without parental concerns (M = 4...
Source: Clinical Linguistics and Phonetics - Category: Speech-Language Pathology Authors: Tags: Clin Linguist Phon Source Type: research