Differences in pragmatic communication skills of adults with intellectual disabilities and dual diagnoses.

Introduction: Pragmatics includes a set of skills related to language structure and meaning that allow the speaker to use the language appropriately and in accordance with different communication situations. The aim of this research was to determine the differences in pragmatic communication skills of adults with intellectual disabilities, dual diagnoses, and typical development, and to determine the effects of gender, age, the level of intellectual functioning and speech comprehension on their achievements on two assessment instruments. Methods: The sample included 180 adults (60 typically developing participants, 60 with intellectual disabilities, and 60 participants with dual diagnoses). We used two instruments to assess pragmatic communication skills - Communication Checklist - Adult, CC-A, and the Assessment Battery for Communication, ABaCo. In order to test the differences between the three groups of participants, we used canonical discriminant analysis. Results: Discriminant analysis revealed two significant canonical functions. Function one (speech comprehension and the level of intellectual disability, social engagement, and paralinguistic scale) differentiates between typically developing participants and participants with dual diagnoses the most. The second canonical function (language structure, linguistic scale, paralinguistic scale, extralinguistic scale, and context scale) differentiates between participants with intellectual disabilities and participants with dual diagnoses the most. According to the results, age did not affect pragmatic achievements. Discussion: Pragmatic skills are very complex, and different instruments measure different dimensions of these abilities. The results of this research lead to the conclusion that we can differentiate between the pragmatic abilities of typically developing people, people with intellectual disabilities, and those with dual diagnoses with the help of the ABaCo battery and the CC-A questionnaire.

Parent-teacher interactions, family stress, well-being, and parental depression as contributing factors to parental involvement mechanisms in education of children with autism.

Parental involvement (PI) in education contributes to numerous positive outcomes in children, including educational outcomes and social competence. The goal of the present study was to examine differences in PI mechanisms between parents of children with autism spectrum disorder (ASD) and parents of typically developing (TD) children. An additional goal was to examine factors affecting PI mechanisms in education in parents of children with ASD. The sample for this study consisted of 50 parents of children with ASD and 50 parents of TD children. The results of this study indicate that parents of children with ASD had lower levels of PI mechanisms in education than parents of TD children. The strongest predictors of PI mechanisms in education in parents of children with ASD were subjective well-being and child's emotional reactivity. Implications for future research and practice are discussed.

Paralinguistic abilities of adults with intellectual disability.

The aim of this research was to determine the ability level of paralinguistic production and comprehension in adults with intellectual disability (ID) with regard to the level of their intellectual functioning and presence of co-morbid psychiatric conditions or dual diagnosis (DD). The sample consisted of 120 participants of both genders, ranging in age between 20 and 56 years (M=31.82, SD=8.702). Approximately 50% of the sample comprised participants with a co-existing psychiatric condition. Each of these two sub-samples (those with ID only and those with DD) consisted of 25 participants with mild ID and 35 participants with moderate ID. The paralinguistic scale from The Assessment Battery for Communication (ABaCo; Sacco et al., 2008) was used to assess the abilities of comprehension and production of paralinguistic elements. The results showed that the participants with mild ID are more successful than the participants with moderate ID both in paralinguistic comprehension tasks (p=.000) and in paralinguistic production tasks (p=.001). Additionally, the results indicated the presence of separate influences of both ID levels on all of the paralinguistic abilities (F [116]=42.549, p=.000) and the existence of DD (F [116]=18.215, p=.000).

Factor structure of the Serbian version of the Children's Communication Checklist-2.

Keeping in mind that traditional tests were largely insensitive to pragmatic impairment, Bishop (2003) created a second version of the Children's Communication Checklist (CCC-2) in order to identify pragmatic deficits in children with communication problems. Unfortunately, it was revealed that certain subscales of the Serbian version of the CCC-2 have unacceptably low internal consistency. Because dividing the test into original subscales did not apply for the Serbian population, the aim of this paper was to determine the factor structure of the CCC-2. The sample consisted of 1344 typically developing, monolingual participants of both sexes, aged from 4 to 17 (M = 9.52; SD = 2.72). Participants were recruited from three statistical regions in Serbia. All participants attended regular kindergarten, elementary or secondary schools. CCC-2 factor analysis was determined by using the principal component method, with Varimax rotation of principal axes. A factor analysis showed that the CCC-2 had three factors (General Communication Ability, Pragmatics and Structural Language Aspects), which accounted for 29.39% of the total variance. A three-factor solution should be further confirmed in the course of a clinical validation of the CCC-2.