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| Age Differences | 1 |
| Comparative Analysis | 1 |
| Competence | 1 |
| Developmental Stages | 1 |
| Early Childhood Education | 1 |
| Individual Differences | 1 |
| Infants | 1 |
| Motivation | 1 |
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| Developmental Psychology | 1 |
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| Hrncir, Elizabeth J. | 1 |
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Peer reviewedHrncir, Elizabeth J.; And Others – Developmental Psychology, 1985
A spontaneous mastery measure, sampling sophistication of infants' behavior and infants' propensity to demonstrate their most sophisticated repertoire of skills, was developed and tested for predictability. Unlike a measure of executive capacity to which it was compared, the spontaneous mastery measure was highly stable across a 6-month period.…
Descriptors: Age Differences, Comparative Analysis, Competence, Developmental Stages
