Family dynamics and infant temperament in urban Iceland.

Pregnancy is a time of transition and crisis when many families are challenged with the addition of an infant. Studies of this challenge are unknown for Icelandic families. The purpose of this study was to investigate the effects of pregnancy and the young infant on family dynamics and the relationship between family dynamics and the infant's developing temperament. Fifty families completed the Family Dynamics Measure during the third trimester of pregnancy and when the infant was eight months old. Mothers also completed the Revised Infant Temperament Questionnaire. Mothers perceived a decrease in role reciprocity across this transition. More stable organized families had more rhythmic infants. There was no association between family structure and either family dynamics or infant temperament. After the birth of the child, fathers perceived more role reciprocity while mothers perceived more individuation and mutuality. Mothers of second infants reported greater individuation than mothers with first infants.