Journal of Experimental Child Psychology
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Learning builds on learning: Infants' use of native language sound patterns to learn words.
The current research investigated how infants apply prior knowledge of environmental regularities to support new learning. The experiments tested whether infants could exploit experience with native language (English) phonotactic patterns to facilitate associating sounds with meanings during word le...
Children's strategies in computational estimation
We investigated strategies used to estimate answers to addition problems. Two hundred and sixteen participants (72 adults, 72 sixth graders, and 72 fourth graders) had to provide estimates of three-by-three digit addition problems (e.g., 249+743). The choice/no-choice method was used to obtain unbias...
Orthographic learning during reading: examining the role of self-teaching
We obtained a substantial correlation (r=.52) between orthographic learning and the number of target homophones correctly decoded during story reading. Hierarchical multiple regression analyses indicated that neither RAN tasks nor general cognitive ability predicted variance in orthographic learning...
Remembering versus knowing the past: children's explicit and implicit memories for pictures.
Two studies are reported examining children's explicit and implicit memory for pictures, using measures of recognition memory and perceptual facilitation. In Experiment 1, 3-year-olds showed significant implicit memory, as assessed by perceptual facilitation in identifying blurred pictures after a 3...
On estimating processing variance: commentary and reanalysis of Kail's "Developmental functions for speeds of cognitive processes".
We have reanalyzed these results. The corrected values range from 0.9 to 92.1% for the individual tasks with an overall average between 40 and 60%. We suggest that the support for the original conclusions is considerably weaker than reported....
Eliminating selective stimulus control: a comparison of two procedures for teaching mentally retarded children to respond to compound stimul...
Selective stimulus control occurs when behavior fails to come under control of all characteristics of a compound stimulus after discrimination training. Two different assessment procedures, one used in prior research and the other incorporating incorrect stimuli (S - 's) which differ...
Is thinking about the future related to theory of mind and executive function? Not in preschoolers.
We administered a battery of EpF, ToM, and EF tasks to 90 3-, 4-, and 5-year-olds. After controlling for age and language ability, the EpF tasks were not intercorrelated, nor were they individually related to EF or ToM. As such, this study challenges the claim that EpF, at least as currently assesse...
The emergence of "groupitizing" in children's numerical cognition.
We examined enumeration speed in a cross-sectional sample of children (N=378), spanning kindergarten through third grade, using arrays of dots. Arrays were either unstructured or grouped by proximity into subsets in the subitizing range (i.e., three subgroups of 1-3 items). Kindergarten children sho...
Contributions of executive function and spatial skills to preschool mathematics achievement.
We investigated the influence of executive function (EF) and spatial skills, two generalizable skills often overlooked in mathematics curricula, on mathematics performance in preschoolers. Children (N=44) of varying socioeconomic status (SES) levels were assessed at 3years of age on a new assessment...
Development of planning in 4- to 10-year-old children: reducing inhibitory demands does not improve performance.
We presented 4- to 10-year-old children (N=172) with two planning tasks (sequential planning and advance planning) using the paddle-box apparatus, which was originally designed to investigate the planning skills of nonhuman apes. First, we were interested in the development of children's performance...