期刊
RESEARCH IN DEVELOPMENTAL DISABILITIES
卷 59, 期 -, 页码 147-165出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ridd.2016.08.001
关键词
Working memory studies; Research review; Population with NSID; Baddeley and hitch model; Vertical-Horizontal Model
资金
- Shalem Fund for the Development of Services for People with Intellectual Disabilities in the Local Councils in Israel
Background: Integrative research review infers generalizations about a substantive subject, summarizes the accumulated knowledge that research has left unresolved and generates a new framework on these issues. Due to methodological issues emerging from working memory (WM) studies in the population with non-specific intellectual disability (NSID) (N=64) between 1990-2014, it is difficult to conclude on WM performance in this population. Aim: This integrative research review aimed to resolve literature conflicts on WM performance among individuals with NSID and to identify the conditions/moderators that govern their WM performance compared to controls with Typical development. Method/procedure: We used the six stages of integrative research review: problem formulation, data collection, evaluation, data analysis, results, interpretation and discussion. Outcomes and results: The findings indicate two types of moderators that determine WM performance in the population with NSID: Participants' moderators (criteria for matching the ID and TD groups, CA and MA), and task moderators [the three WM components of Baddeley and Hitch's (1974) model and task load]. Only an interaction between the two moderators determines WM performance in this population. The findings indicate a hierarchy (from more to less preserved) in WM performance of individuals with NSID: The visuospatial tasks, then some of the executive functions tasks, and the phonological loop tasks being less preserved. Furthermore, at a low level of control, the performance of participants with NSID was preserved beyond the modality and vice versa. Conclusions and implications: Modality and MA/intelligence determine WM performance of individuals with ID. Educators should prepare intervention programs take the impact of the two moderators into account. (C) 2016 Elsevier Ltd. All rights reserved.
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