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In the field of children's knowledge of the earth, much debate has concerned the question of whether children's naive knowledge-that is, their knowledge before they acquire the standard scientific theory-is coherent (i.e., theory-like) or fragmented. We conducted two studies with large samples (N=328 and N=381) using a new paper-and-pencil test, denoted the(More)
Enumeration can be accomplished by subitizing, counting, estimation, and combinations of these processes. We investigated whether the dissociation between subitizing and counting can be observed in 4- to 6-year-olds and studied whether the maximum number of elements that can be subitized changes with age. To detect a dissociation between subitizing and(More)
Nearly all staff members participate in the Experimental Psychology Graduate School (EPOS) or the Interuniversitary Graduate School for Psychometrics and Sociometrics (IOPS). The staff has close ties with the Cognitive Science Center of the University of Amsterdam (CSCA). The program focuses on two research themes: Developmental Processes and Brain and(More)
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