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| Infants | 2 |
| Object Manipulation | 2 |
| Affective Behavior | 1 |
| Behavior Development | 1 |
| Exploratory Behavior | 1 |
| Goal Orientation | 1 |
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| Developmental Psychology | 2 |
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Peer reviewedPower, Thomas G.; And Others – Developmental Psychology, 1985
Studies 12- to 24-month-olds in a series of videotaped tasks assessing single object manipulation, relational play, pretend play, distractibility and persistence. Develops eight relatively subtle measures of three aspects of individual differences in infant behavior: developmental level, attention span, and exploratory diversity. (Author/NH)
Descriptors: Exploratory Behavior, Individual Differences, Infants, Object Manipulation
Peer reviewedMacTurk, Robert H.; And Others – Developmental Psychology, 1987
Sequences of mastery behavior were analyzed in a sample of 67 infants 6 to 12 months old. Authors computed (a) frequencies of six categories of mastery behavior, transitional probabilities, and z scores for each behavior change, and (b) transitions from a mastery behavior to positive affect. Changes in frequencies and similarity in organization…
Descriptors: Affective Behavior, Behavior Development, Goal Orientation, Infants
