<p>Higher-order cognitive functions, such as executive function (EF) and intelligence, are crucial to the everyday functioning of human beings. Gaining knowledge about these functions is important for our general understanding of human nature as well as for our ability to help those who may not develop these processes optimally. The present thesis focused particularly on the EF component working memory (WM), described as the ability to maintain informa-tion in consciousness during short time periods with the purpose of using that information in complex cognition. The major aims of the thesis were to increase our understanding of higher-order cognition in children as well as of deficiencies in intelligence found in children with Attention Deficit Hyperactivity Disorder (ADHD). We approached these aims by studying the interrelations among EF-related components in terms of their independent contributions to intellectual functioning. We also studied whether the lower intelligence in children with ADHD was mediated by fundamental EF-related components or whether these deficiencies went beyond the weaknesses in these specific cognitive functions.</p><p>Interpreting the present data, we suggest that intellectual functioning in children is best viewed as representing a system of primarily independent parts that may be accompanied by an overarching common mechanism. The multiple components involve, but are surely not limited to, WM functions, inhibitory functions, sustained attention, and processing speed. One of these functions, WM, was found to be further partitioned into domain-specific executive WM processes and domain-specific short-term storage processes, all of which constitute important aspects of higher-order cognitive functioning. We have further learned that deficits in fluid intelligence in children with ADHD may entail more than weaknesses in specific central cognitive functions. This additional deficit is cautiously interpreted as involving supe-rior executive attention functions setting the stage for the development and integration of the EF system as well as the “intelligence system”.</p>

Higher-order cognitive functions, such as executive function (EF) and intelligence, are crucial to the everyday functioning of human beings. Gaining knowledge about these functions is important for our general understanding of human nature as well as for our ability to help those who may not develop these processes optimally. The present thesis focused particularly on the EF component working memory (WM), described as the ability to maintain informa-tion in consciousness during short time periods with the purpose of using that information in complex cognition. The major aims of the thesis were to increase our understanding of higher-order cognition in children as well as of deficiencies in intelligence found in children with Attention Deficit Hyperactivity Disorder (ADHD). We approached these aims by studying the interrelations among EF-related components in terms of their independent contributions to intellectual functioning. We also studied whether the lower intelligence in children with ADHD was mediated by fundamental EF-related components or whether these deficiencies went beyond the weaknesses in these specific cognitive functions. Interpreting the present data, we suggest that intellectual functioning in children is best viewed as representing a system of primarily independent parts that may be accompanied by an overarching common mechanism. The multiple components involve, but are surely not limited to, WM functions, inhibitory functions, sustained attention, and processing speed. One of these functions, WM, was found to be further partitioned into domain-specific executive WM processes and domain-specific short-term storage processes, all of which constitute important aspects of higher-order cognitive functioning. We have further learned that deficits in fluid intelligence in children with ADHD may entail more than weaknesses in specific central cognitive functions. This additional deficit is cautiously interpreted as involving supe-rior executive attention functions setting the stage for the development and integration of the EF system as well as the “intelligence system”.

This study presents a new framework for designing pedagogy in an informed and controlled way. It considers the importance of progression of pedagogy during a learning episode, so that an instructor can modify the pedagogical approach as well as the content in a lesson. The significance and novelty of this research lie in the proposals to provide support for ADHD learners and assist them to overcome their academic weaknesses/challenges through appropriate pedagogically sound interventions. Therefore, in order to contribute to the development of a suitable pedagogical approach for children who diagnosed with ADHD, issues of having ADHD are discussed within the scope of the research. In this respect, an aetiological model of ADHD has been developed to identify different levels of impairments as well as to clarify areas in which educational pedagogies must address the limitations of ADHD learners. Early stage results described here consider evidence to determine the viability of two literature-based models, named the ‘6Ms pedagogy model’ and the ‘aetiological model of ADHD’. In identifying the need to explore an accurate pedagogical model for ADHD children, two models have been evaluated. The analysis is based on a combination of secondary analysis, qualitative, and quantitative data analysis, which covered data, collected from expert advice, including that from professionals, coaches, and teachers and from those involved in the education of learners with ADHD and parents. Evidence from findings on ADHD is married to a new model of pedagogy named the ‘7Ms pedagogy model’. The ADHD pedagogical model is then evaluated by SEN teachers serves to facilitate well-informed and targeted design decisions about pedagogy, which could provide children with support and help them overcome academic limitations. Keywords: Attention Deficit-Hyperactivity Disorder; 6Ms Pedagogy Model; 7Ms Pedagogy Model; learning theories; aetiological model; typically developing learners (TDLs); and special educational needs (SEN).