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The Influence of Contingent and Noncontingent Social Reinforcement upon Children in a Simple Operant Task
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Pawlicki, Robert E. – Child Development, 1972
Results of the present study confirm the importance of the contingency variable in experiments dealing with the effect of supportive comment upon children's performance. (Author)
Descriptors: Data Analysis, Extinction (Psychology), Grade 3, Performance Factors
Information Processing and the Modification of an "Impulsive Conceptual Tempo"
Peer reviewed Peer reviewed
Heider, Eleanor Rosch – Child Development, 1971
Eighty middle-class and 80 lower-class boys were tested on a visual and a verbal task under 3 conditions designed to modify an impulsive tempo." (Author)
Descriptors: Behavioral Science Research, Conceptual Tempo, Information Processing, Motivation
The Effects of Reinforcement and Strategy Training on Impulsive Responding
Peer reviewed Peer reviewed
Cole, Pamela M.; Hartley, Deborah Green – Child Development, 1978
Descriptors: Conceptual Tempo, Elementary School Students, Positive Reinforcement, Reaction Time
Reflection-Impulsivity and Color-Form Sorting
Peer reviewed Peer reviewed
Katz, Judith Milstein – Child Development, 1971
A study to determine whether the differential development of conceptual tempo can predict preferences. Conceptual tempo predicted preferences in color-form sorting among 67 children ranging in age from 44 to 65 months. (WY)
Descriptors: Cognitive Processes, Color, Conceptual Tempo, Preschool Children
Anticipatory Heart Rate Deceleration and Reaction Time in Children with and without Referral for Learning Disability
Peer reviewed Peer reviewed
Sroufe, L. Alan; And Others – Child Development, 1973
The finding of major significance in this study concerns the effect of stimulant drug medication on the relationship between heart rate deceleration and reaction time with the clinic children. (Authors)
Descriptors: Attention, Drug Therapy, Handicapped Children, Heart Rate
Individual and Developmental Differences in Disengagement of Fixation in Early Infancy.
Peer reviewed Peer reviewed
Frick, Janet E.; Colombo, John; Saxon, Terrill F. – Child Development, 1999
Investigated whether individual and developmental differences in look duration were correlated with latency to disengage fixation from a visual stimulus for 3- and 4-month olds. Found that look duration was correlated with disengagement latency. Three-month olds showed slower latencies than 4-month olds. Long-looking infants showed greater…
Descriptors: Age Differences, Individual Differences, Infant Behavior, Infants
Sleep, Neurobehavioral Functioning, and Behavior Problems in School-Age Children.
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Sadeh, Avi; Gruber, Reut; Raviv Amiram – Child Development, 2002
Examined associations between sleep and neurobehavioral functioning (NBF) in second-, fourth-, and sixth-graders. Found significant correlations between sleep- quality measures and NBF measures, particularly for the younger age group. Children with fragmented sleep were characterized by lower performance on NBF measures, particularly those…
Descriptors: Age Differences, Attention Control, Behavior Problems, Children
The Development of Visual Expectations in the First Year.
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Reznick, J. Steven; Chawarska, Katarzyna; Betts, Stephanie – Child Development, 2000
Two experiments used Visual Expectations Procedure to investigate development of expectations in infants up to 12 months old. Reaction time improved and the percentage of anticipations increased between 6 and 9 months using an alternation pattern or a complex pivot pattern, and between 4 and 8 months when using a left-right alternation or a…
Descriptors: Age Differences, Cognitive Development, Cognitive Processes, Expectation
When Half a Word Is Enough: Infants Can Recognize Spoken Words Using Partial Phonetic Information.
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Fernald, Anne; Swingley, Daniel; Pinto, John P. – Child Development, 2001
Two experiments tracked infants' eye movements to examine use of word-initial information to understand fluent speech. Results indicated that 21- and 18-month-olds recognized partial words as quickly and reliably as whole words. Infants' productive vocabulary and reaction time were related to word recognition accuracy. Results show that…
Descriptors: Age Differences, Cognitive Development, Comparative Analysis, Eye Movements
The Effects of Sleep Restriction and Extension on School-Age Children: What a Difference an Hour Makes.
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Sadeh, Avi; Gruber, Reut; Raviv, Amiram – Child Development, 2003
Assessed effects of sleep restriction and extension on 9- to 12-year-olds' neurobehavioral functioning. Found that modest sleep restriction led to improved sleep quality but to reduced reported alertness. Children who extended sleep improved significantly from baseline their performance on the digit forward memory test and reaction time on the…
Descriptors: Age Differences, Attention Control, Children, Comparative Analysis