Social science and parenting plans for young children: A consensus report
Psychology, Public Policy, and Law
Report summary
What does the developmental literature imply for parenting plans and overnights for young children whose parents live apart?
The report challenged blanket restrictions on young children's overnight care and said courts must consider the risk of weakening or losing the father-child relationship as well as possible attachment concerns. Citing the Stanford Custody Project, it reported father dropout of 56% with daytime-only contact versus 1.6% with overnight contact for children under three when their parents separated. For children aged three to five, the reported figures were 49% versus 7.7%. For families described as high conflict, Warshak argued against an automatic exclusion. He recommended examining the source and pattern of conflict, the quality of each parent's care, and whether practical protections such as school, daycare, or neutral-location transfers could keep children away from hostile exchanges.
Across later work, rigid age cut-offs have given way to more conditional frameworks based on established care, safety, conflict, transitions, and child characteristics.
Researchers' conclusions
The report concluded that, in ordinary safe circumstances, regular care including overnights can help fathers remain committed and involved. It did not propose one schedule for every child. It said conflict must be understood rather than treated as a label, and that ordinary recommendations do not apply automatically where violence, abuse, neglect, coercive control, or another serious safety risk requires protection.
This is a plain-language summary of the researchers' conclusion. It is not advice for an individual family.
How the report was produced
These papers integrate research rather than randomly assign families to plans. Their recommendations must be separated from the underlying empirical findings.
What this paper supports
Reasonably supports
- Making assumptions, evidence, and value judgments visible when moving from research to guidance.
- Individualizing plans around actual caregiving history and the child’s functioning.
- Protecting both developmental security and meaningful parent-child relationships where possible.
- Reviewing arrangements as children and family conditions change.
Does not establish
- Presenting a professional framework as though it were a randomized trial.
- Using an age chart without examining the facts that the framework says matter.
- Treating either equal time or primary residence as scientifically mandatory in every ordinary case.
- Allowing a population-level recommendation to displace safety evidence in an individual family.
Important limitations
- Consensus reports are not primary empirical studies
- Endorsement does not remove scholarly disagreement
- The conflict discussion relies largely on observational research
- Recommendations require case-specific application and a separate safety assessment
Evidence context and debate
Open the sections below for the wider research context, points of agreement, and areas that remain contested.
Why this question matters
Developmental research entered family-law guidance through attempts to translate attachment, separation, caregiving, and parental-involvement findings into practical schedules.
Parenting-plan papers sit at the boundary between science and recommendation. They draw on attachment, parental involvement, separation, sleep, conflict, and developmental research, but the plan itself is not usually tested through random assignment. A reader must therefore distinguish the empirical findings being cited from the authors’ professional synthesis of what those findings imply.
Kelly and Lamb emphasized developmental capacities and maintaining both relationships. Warshak argued that blanket restrictions undervalued father-child relationships and were not supported by direct evidence. McIntosh, Pruett, and Kelly’s companion papers integrated attachment and involvement while providing a structured set of child, relationship, and coparenting considerations.
Across these papers, the field has moved away from a single primary-parent formula. The remaining disagreement is less about whether both relationships matter and more about the prudent starting point, the pace of transitions, and how to respond when the evidence on a particular age or schedule is sparse.
Where researchers agree and disagree
There is substantial agreement that plans should be individualized and should protect children from harmful conflict, abuse, neglect, and abrupt loss of familiar care.
Authors differ over the preferred default when evidence is incomplete and over how quickly substantial overnight care should develop for very young children.
Comparison with other research
Kelly & Lamb, 2000
Used developmental research to support schedules that preserve both relationships while reflecting the child’s capacities and established care.
Warshak, 2014
Opposed blanket overnight restrictions and argued for maximizing both relationships in ordinary circumstances, with individualized exceptions.
Pruett, McIntosh & Kelly, 2014 Part I
Joined attachment and involvement perspectives through a triadic secure-base model and retained conditional caution.
McIntosh, Pruett & Kelly, 2014 Part II
Translated the integration into a practice framework covering the child, relationships, parenting capacity, safety, conflict, and transition demands.
How the evidence developed later
The literature increasingly states exceptions and boundary conditions explicitly.
Triadic and network perspectives have replaced an either-or contest between attachment and involvement.
Recent consensus warns courts that attachment science supplies principles, not an automatic schedule.
Policy evaluation is developing as a separate evidence stream from developmental guidance.
Read the paper and related research
This report
Richard A. Warshak, with endorsers listed in the article (2014). Social science and parenting plans for young children: A consensus report. Psychology, Public Policy, and Law, 20(1), 46–67. https://doi.org/10.1037/law0000005
The Stanford Custody Project behind the father-dropout figures
Maccoby, E. E., & Mnookin, R. H. (1992). Dividing the Child: Social and Legal Dilemmas of Custody. Harvard University Press.
Warshak cites this project for the reported comparison between father dropout after daytime-only contact and after overnight contact. Read it to trace the figures back beyond the consensus report.
Evaluation of the 2006 Family Law Reforms
Check Warshak's 35% discussion against the underlying Australian government evaluation he cited.
Record checked against the linked scholarly source. Last editorial review: 22 July 2026, as part of a batch review of the current collection.