Understanding developmental language disorder -The Helsinki longitudinal SLI study (HelSLI) : A study protocol

Background: Developmental language disorder (DLD, also called specific language impairment, SLI) is a common developmental disorder comprising the largest disability group in pre-school-aged children. Approximately 7% of the population is expected to have developmental language difficulties. However, the specific etiological factors leading to DLD are not yet known and even the typical linguistic features appear to vary by language. We present here a project that investigates DLD at multiple levels of analysis and aims to make the reliable prediction and early identification of the difficulties possible. Following the multiple deficit model of developmental disorders, we investigate the DLD phenomenon at the etiological, neural, cognitive, behavioral, and psychosocial levels, in a longitudinal study of preschool children. Methods: In January 2013, we launched the Helsinki Longitudinal SLI study (HelSLI) at the Helsinki University Hospital ( http://tiny.cc/HelSLI ). We will study 227 children aged 3-6 years with suspected DLD and their 160 typically developing peers. Five subprojects will determine how the child's psychological characteristics and environment correlate with DLD and how the child's well-being relates to DLD, the characteristics of DLD in monolingual versus bilingual children, nonlinguistic cognitive correlates of DLD, electrophysiological underpinnings of DLD, and the role of genetic risk factors. Methods include saliva samples, EEG, computerized cognitive tasks, neuropsychological and speech and language assessments, video-observations, and questionnaires. Discussion: The project aims to increase our understanding of the multiple interactive risk and protective factors that affect the developing heterogeneous cognitive and behavioral profile of DLD, including factors affecting literacy development. This accumulated knowledge will form a heuristic basis for the development of new interventions targeting linguistic and non-linguistic aspects of DLD. © 2018 The Author(s).Non peer reviewe

Effects of age and duration of reading instruction on the development of phonological awareness, rapid naming, and verbal memory span

The aim of this study was to assess developmental changes in test scores representing phonological awareness, rapid alternating naming, and verbal memory span, and to study the effects of age, duration of instruction in reading and spelling, and sex on these variables. The participants were 316 children with ages ranging from 4 to 12 years, drawn from the Finnish standardization sample for the NEPSY. A Developmental Neuropsychological Assessment. All subtest scores showed significant developmental increments that were more significant in younger (4-8 years) than in order (9-12 years) children. The start of formal instruction, at age 7, was followed by a significant increase in the capacity for phonological analysis on a phoneme level. A comparable effect of instruction on syllabic analysis, rapid naming, and memory span was not observed

Assessing the development of collaborative knowledge work competence:scales for higher education course contexts

Abstract The necessity to learn competence for collaborative knowledge work during higher education (HE) is accepted widely, but continued work is required to explicate how to define and assess such competence. In this article, the development and validation of a questionnaire for assessing the development of collaborative knowledge work competence is based on object-bound collaborative knowledge creation practices. In total, 546 students responded to a questionnaire on Collaborative Knowledge Practices (CKP). The data were analysed for measurement invariance for two groups of HE students in media engineering and life sciences. Seven scales of the CKP were found to measure course-related learning of collaboration, integration of personal and collective efforts, development through feedback, persistent development of knowledge objects, understanding of different disciplines and related expertise, interdisciplinary collaboration, and using digital technology. The CKP questionnaire scales can be used as a generic self-evaluation tool for students on course-based learning outcomes

Understanding developmental language disorder - the Helsinki longitudinal SLI study (HelSLI):a study protocol

Abstract Background: Developmental language disorder (DLD, also called specific language impairment, SLI) is a common developmental disorder comprising the largest disability group in pre-school-aged children. Approximately 7% of the population is expected to have developmental language difficulties. However, the specific etiological factors leading to DLD are not yet known and even the typical linguistic features appear to vary by language. We present here a project that investigates DLD at multiple levels of analysis and aims to make the reliable prediction and early identification of the difficulties possible. Following the multiple deficit model of developmental disorders, we investigate the DLD phenomenon at the etiological, neural, cognitive, behavioral, and psychosocial levels, in a longitudinal study of preschool children. Methods: In January 2013, we launched the Helsinki Longitudinal SLI study (HelSLI) at the Helsinki University Hospital (http://tiny.cc/HelSLI). We will study 227 children aged 3–6 years with suspected DLD and their 160 typically developing peers. Five subprojects will determine how the child’s psychological characteristics and environment correlate with DLD and how the child’s well-being relates to DLD, the characteristics of DLD in monolingual versus bilingual children, nonlinguistic cognitive correlates of DLD, electrophysiological underpinnings of DLD, and the role of genetic risk factors. Methods include saliva samples, EEG, computerized cognitive tasks, neuropsychological and speech and language assessments, video-observations, and questionnaires. Discussion: The project aims to increase our understanding of the multiple interactive risk and protective factors that affect the developing heterogeneous cognitive and behavioral profile of DLD, including factors affecting literacy development. This accumulated knowledge will form a heuristic basis for the development of new interventions targeting linguistic and non-linguistic aspects of DLD