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Bullens, Jessie; Klugkist, Irene; Postma, Albert – Developmental Psychology, 2011
To locate objects in the environment, animals and humans use visual and nonvisual information. We were interested in children's ability to relocate an object on the basis of self-motion and local and distal color cues for orientation. Five- to 9-year-old children were tested on an object location memory task in which, between presentation and…
Descriptors: Object Permanence, Cues, Memory, Children
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Hunnius, Sabine; Bekkering, Harold – Developmental Psychology, 2010
This study examined the developing object knowledge of infants through their visual anticipation of action targets during action observation. Infants (6, 8, 12, 14, and 16 months) and adults watched short movies of a person using 3 different everyday objects. Participants were presented with objects being brought either to a correct or to an…
Descriptors: Observation, Infants, Human Body, Adults
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de Bildt, Annelies; Oosterling, Iris J.; van Lang, Natasja D. J.; Sytema, Sjoerd; Minderaa, Ruud B.; van Engeland, Herman; Roos, Sascha; Buitelaar, Jan K.; van der Gaag, Rutger-Jan; de Jonge, Maretha V. – Journal of Autism and Developmental Disorders, 2011
The validity of the calibrated severity scores on the ADOS as reported by Gotham et al. (J Autism Dev Disord 39: 693-705, "2009"), was investigated in an independent sample of 1248 Dutch children with 1455 ADOS administrations (modules 1, 2 and 3). The greater comparability between ADOS administrations at different times, ages and in…
Descriptors: Autism, Test Validity, Severity (of Disability), Age Differences
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van de Louw, Joyce; Vorstenbosch, R.; Vinck, L.; Penning, C.; Evenhuis, H. – Journal of Intellectual Disability Research, 2009
Background: Literature on the prevalence of hypertension in people with intellectual disability (ID) is mostly based on file studies or on measurements limited to the age group below 50 years. We measured and calculated the prevalence of hypertension in adults with ID and studied the distribution of hypertension in relation to age, gender,…
Descriptors: Age Differences, Physical Activities, Incidence, Mental Retardation
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Leigh, Andrew; Ryan, Chris – Economics of Education Review, 2008
How much do returns to education differ across different natural experiment methods? To test this, we estimate the rate of return to schooling in Australia using two different instruments for schooling: month of birth and changes in compulsory schooling laws. With annual pre-tax income as our measure of income, we find that the naive ordinary…
Descriptors: Twins, Income, Least Squares Statistics, Foreign Countries
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Wauters, Loes N.; van Bon, Wim H. J.; Tellings, Agnes E. J. M.; van Leeuwe, Jan F. J. – American Annals of the Deaf, 2006
The present study examined whether specific item characteristics, such as mode of acquisition (MoA) of word meanings, make reading comprehension tests particularly difficult for deaf children. Reading comprehension data on nearly 13,000 hearing 7-to-12-year-olds and 253 deaf 7-to-20-year-olds were analyzed, divided across test levels from second…
Descriptors: Semantics, Deafness, Age Differences, Reading Comprehension