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Peer reviewedWorobey, John; Blajda, Virginia M. – Developmental Psychology, 1989
Among 36 newborns, Infant Behavior Questionnaire (IBQ) activity level, responsivity, and irritability exhibited stability from 2 weeks to 2 months and from 2 months to 12 months. Irritability was stable from 2 weeks to 12 months. IBQ ratings generally increased by year's end. (RH)
Descriptors: Affective Behavior, Age Differences, Longitudinal Studies, Neonates
Peer reviewedRiese, Marilyn L. – Developmental Psychology, 1987
The predictive relation between neonatal behavior and temperament at 24 months was examined for 67 infants selected from the full socioeconomic status (SES) distribution. Initial ratings were made when the infants were one to four days old. Irritable neonates were rated as more upset, less attentive to stimuli, and less responsive to the staff at…
Descriptors: Affective Behavior, Attention Control, Conflict, Interpersonal Competence
