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Age Differences1
Behavior Patterns1
Infants1
Research Methodology1
Stress Variables1
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Child Development1
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Lewis, Michael1
Thomas, David1
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Cortisol Release in Infants in Response to Inoculation.
Peer reviewed Peer reviewed
Lewis, Michael; Thomas, David – Child Development, 1990
Data provide strong evidence that studies of stress and cortisol release in infants must take into account basal level, circadian rhythm, and behavioral effects and employ appropriate statistical procedures. Participants were infants of two, four, and six months of age from whom salivary cortisol was obtained before and 15 minutes after an…
Descriptors: Age Differences, Behavior Patterns, Infants, Research Methodology