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Hoekstra, Rosa A.; Vinkhuyzen, Anna A. E.; Wheelwright, Sally; Bartels, Meike; Boomsma, Dorret I.; Baron-Cohen, Simon; Posthuma, Danielle; van der Sluis, Sophie – Journal of Autism and Developmental Disorders, 2011
This study reports on the development and validation of an abridged version of the 50-item Autism-Spectrum Quotient (AQ), a self-report measure of autistic traits. We aimed to reduce the number of items whilst retaining high validity and a meaningful factor structure. The item reduction procedure was performed on data from 1,263 Dutch students and…
Descriptors: Autism, Factor Structure, Foreign Countries, Pervasive Developmental Disorders
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Verpoorten, Dominique; Westera, Wim; Specht, Marcus – British Journal of Educational Technology, 2012
This paper reports on a controlled experiment on the effects of three types of reflection triggers in an online course. Fifty-four volunteers, distributed in five groups, used these structured opportunities for reflection during learning. Results show that reflection triggers were extensively employed by the test persons and were perceived as…
Descriptors: Foreign Countries, Online Courses, Web Based Instruction, Open Source Technology
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Regtvoort, Anne G. F. M.; van Leeuwen, Theo H.; Stoel, Reinoud D.; van der Leij, Aryan – Brain and Language, 2006
To investigate underlying learning mechanisms in relation to the development of dyslexia, event-related potentials to visual standards were recorded in five-year-old pre-reading children at-risk for familial dyslexia (n=24) and their controls (n=14). At the end of second grade the children aged 8 years were regrouped into three groups according to…
Descriptors: Efficiency, Visual Perception, Cognitive Processes, Young Children