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Peer reviewed Peer reviewed
Yang, Raymond K.; And Others – Developmental Psychology, 1976
Measures of active sleep, quiet sleep, sucking, crying, body size and gestational age were factor analyzed for 137 normal newborns at 2 days of age. The results yielded 3 stable factors: reactivity-irritability, maturity, and reflexive and discriminative sucking. (JMB)
Descriptors: Behavior Patterns, Body Weight, Discrimination Learning, Factor Analysis
Peer reviewed Peer reviewed
Yarrow, Leon J.; Pederson, Frank A. – Young Children, 1972
In this paper some behavioral indices of attachment are defined and some of the factors that affect its development are considered. (Editor)
Descriptors: Attachment Behavior, Behavior Patterns, Child Development, Cognitive Development
Decarie, Therese Gouin – 1973
The research reported in this symposium paper attempts to underline a Piagetian distinction concerning object concept which has tended to be ignored by psychologists working along Piagetian lines. More specifically, this research tested the hypothesis that intellectual development plays a role in the development of stranger reactions. The subjects…
Descriptors: Behavior Patterns, Behavior Rating Scales, Developmental Psychology, Discrimination Learning