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Leonard, Hayley C.; Annaz, Dagmara; Karmiloff-Smith, Annette; Johnson, Mark H. – Journal of Cognition and Development, 2013
Previous research into face processing in autism spectrum disorder (ASD) has revealed atypical biases toward particular facial information during identity recognition. Specifically, a focus on features (or high spatial frequencies [HSFs]) has been reported for both face and nonface processing in ASD. The current study investigated the development…
Descriptors: Pervasive Developmental Disorders, Autism, Spatial Ability, Children
Lewis, Joan D.; DeCamp-Fritson, Stephanie S.; Ramage, Jean C.; McFarland, Max A.; Archwamety, Teara – Multicultural Education, 2007
The purpose of this study was to compare the effectiveness of the Raven's Standard Progressive Matrices, the Naglieri Nonverbal Abilities Test (NNAT), and the Iowa Test of Basic Skills (ITBS) in selecting for ethnically diverse students who may be gifted. The participants of the study were 175 students enrolled in Grades 3-5 and Grade 8 in a…
Descriptors: Gifted, Elementary Education, Nonverbal Ability, Test Validity