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Updated: Mar 2, 2026

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Published on: September 11, 2021
Efficacy of Sibling Preparation Classes
Objective:
To examine the effectiveness of sibling preparation classes to facilitate the adjustment of a firstborn child to the birth of a sibling.
Design:
Longitudinal study with five measurement occasions: third trimester of the mother's pregnancy and 1, 4, 8, and 12 months after the sibling's birth.
Setting:
Communities in southeastern Michigan.
Participants:
A total of 241 families, including mothers, fathers, and firstborn children.
Methods:
Mothers and fathers completed questionnaires to assess changes in children's adjustment. Parents were also asked about their children's attendance at a sibling preparation class focused specifically on preparation for the newborn. Effects of attendance were tested using linear mixed models.
Results:
Other than avoidance of the infant, children who attended sibling preparation classes did not differ from children who did not attend.
Conclusion:
Sibling preparation classes for adjustment after the birth of an infant sibling had few effects on participants.
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