The Coparenting Relationship Scale (CRS)

Abstract

The Coparenting Relationship Scale (CRS) is a multidimensional psychometric instrument developed by Dr. Mark E. Feinberg and colleagues to assess the qualitative dynamics of the coparenting alliance between primary caregivers. Rooted in Feinberg’s (2003) ecological model of coparenting, the CRS evaluates how parents coordinate, support, or undermine one another in their shared childrearing responsibilities. The standard full-length scale consists of 35 self-report items structured into seven distinct yet interrelated subscales: Coparenting Agreement, Coparenting Closeness, Exposure to Conflict, Coparenting Support, Coparenting Undermining, Endorse Partner Parenting, and Division of Labor. Responses are recorded on a 7-point Likert-type scale ranging from 0 (Not true of us / Never or rarely) to 6 (Very true of us / Most of the time), with context-specific frequency anchors for the conflict items ranging from 0 (Never) to 6 (Several times a day).

Extensive psychometric investigations have established that the CRS possesses robust construct validity, high internal consistency, and strong longitudinal stability. Confirmatory factor analytic (CFA) studies validate a hierarchical bifactor or higher-order structural framework where individual subscales load onto a broader, overarching latent coparenting quality factor while maintaining substantive unique variance. The tool demonstrates divergent validity by demonstrating conceptual and empirical distinctiveness from general marital satisfaction, romantic intimacy, and individual psychopathology, as well as predictive validity concerning child socioemotional adjustment, attachment security, and parental psychological well-being. The CRS is widely utilized in developmental psychology, family therapy, transition-to-parenthood research, and the evaluation of preventive couple-focused interventions such as Family Foundations.

Keywords

Coparenting Relationship Scale, coparenting quality, family systems theory, Mark E. Feinberg, parental alliance, coparental support, coparenting undermining, division of labor, child adjustment, psychometrics.

Authors

The Coparenting Relationship Scale was developed by an interdisciplinary team of researchers specializing in prevention science, developmental psychopathology, and family dynamics at The Pennsylvania State University:

• Mark E. Feinberg, Ph.D. — Research Professor of Health and Human Development, Edna Bennett Pierce Prevention Research Center, The Pennsylvania State University, University Park, PA, USA.
• Lynette D. Brown, Ph.D. — Prevention Research Center, The Pennsylvania State University, University Park, PA, USA.
• Michael L. Kan, Ph.D. — Edna Bennett Pierce Prevention Research Center, The Pennsylvania State University, University Park, PA, USA.

Purpose

The primary purpose of the Coparenting Relationship Scale (CRS) is to provide an empirically grounded, ecologically valid, and multidimensional assessment of how two individuals negotiate, coordinate, and execute their joint parenting duties. Prior to the development of the CRS, family researchers often conflated the romantic/marital relationship with the coparenting alliance, relying on general marital satisfaction indices (such as the Dyadic Adjustment Scale) to infer parenting coordination. However, clinical and developmental research revealed that couples can experience marked romantic distress while maintaining a collaborative, highly effective coparenting dynamic, or conversely, exhibit mutual romantic affection while actively triangulating children or undermining each other’s parental authority (McHale, 1995; Minuchin, 1974).

The CRS was explicitly constructed to capture the systemic nature of the coparenting relationship as an enterprise distinct from romantic passion, sexual intimacy, or general relational harmony. In clinical and preventive contexts, the CRS serves as both a diagnostic screen and an outcome measure. It enables clinicians and family interventionists to pinpoint specific vectors of coparental breakdown—such as whether a couple’s distress stems from fundamental ideological disagreements over discipline (Agreement), direct hostility and triangulation in front of the child (Exposure to Conflict), insidious covert criticism (Undermining), or perceptions of inequity in household contributions (Division of Labor).

In empirical research, the CRS is widely implemented across the transition to parenthood, early childhood longitudinal studies, and clinical trials examining preventive family interventions (e.g., the Family Foundations program). Because the measure captures both constructive behaviors (support, affirmation, endorsement, closeness) and destructive patterns (undermining, overt conflict exposure), it permits structural equation modeling of positive and negative spillover dynamics, transactional child-parent feedback loops, and the moderating role of coparenting in buffered family stress models.

Psychological Construct

The coparenting construct operationalized by the CRS reflects the shared enterprise of parenting across distinct relational dimensions. Feinberg (2003) conceptualized coparenting as an overarching executive subsystem within the family hierarchy. Rather than treating coparenting as a single homogeneous continuum from “poor” to “good,” the CRS dissects the construct into seven operationalized sub-dimensions:

1. Coparenting Agreement

This dimension assesses the degree of ideological and behavioral consensus between partners regarding childrearing practices, disciplinary strategies, behavioral expectations, and moral standards. High agreement indicates that parents share aligned goals and expectations for their offspring, reducing the likelihood of contradictory commands. Disagreement introduces developmental ambiguity for children and often precipitates parental stalemates over everyday caregiving routines.

2. Coparenting Closeness

Coparenting Closeness reflects the extent to which the shared experience of parenting fosters mutual emotional intimacy, team cohesion, and a sense of shared purpose between partners. Unlike general romantic intimacy, this dimension focuses strictly on child-centered communion: the feeling of mutual warmth experienced when watching a partner interact with the child, and the perception that navigating parental stressors has strengthened the dyadic bond.

3. Exposure to Conflict

This subscale captures the frequency with which interparental hostilities, arguments, and dysregulated communication occur directly in the presence of or within earshot of the child. It encompasses disputes over childrearing as well as broader relational friction (e.g., finances, marital tensions). In developmental psychopathology, overt child exposure to interparental conflict is a well-established risk factor for emotional insecurity, neuroendocrine dysregulation, and externalizing behavioral problems (Cummings & Davies, 2002).

4. Coparenting Support

Coparenting Support measures the tangible and emotional backing parents provide one another in their parenting roles. It involves affirming the partner’s parenting efforts, actively soliciting the partner’s input on caregiving decisions, providing instrumental respite during moments of parental exhaustion, and presenting a unified parental front to the child during behavioral interventions.

5. Coparenting Undermining

Undermining is characterized by active, often covert efforts to sabotage, demean, or invalidate the partner’s parental authority, competence, and connection with the child. Specific behavioral indicators include criticizing the partner’s parenting decisions in front of the child, using sarcasm or demeaning humor regarding their caregiving competence, competing for the child’s preferential affection, and contradicting disciplinary boundaries established by the other parent.

6. Endorse Partner Parenting

This facet assesses the degree of respect, trust, and validation one parent accords to the other’s fundamental competence and sensitivity as a caregiver. High endorsement indicates that a parent trusts the partner’s caregiving instincts, perceives the partner as empathetic and responsive to the child’s developmental needs, and respects the partner’s independent caretaking decisions.

7. Division of Labor

Division of Labor quantifies the perceived fairness, reciprocity, and equity regarding the distribution of childrearing tasks and day-to-day household maintenance. Importantly, the CRS does not measure literal time spent (which often reflects structural socioeconomic constraints), but rather the subjective sense of mutual contribution, equity, and the absence of one parent leaving the burdensome “dirty work” to the other.

Theoretical Framework

The architecture of the Coparenting Relationship Scale is grounded in Family Systems Theory (Minuchin, 1974) and Feinberg’s (2003) Ecological Model of Coparenting. Structural family theorists postulate that families are organized into differentiated functional subsystems, notably the marital/executive subsystem, the parent-child subsystem, and the sibling subsystem. The boundaries separating these subsystems must remain clearly defined yet permeable enough to support developmental transitions. When the coparenting alliance deteriorates, structural boundary dissolution often occurs via triangulation, cross-generational coalitions (e.g., one parent enlisting a child against the other parent), or parentification.

Building upon these structural insights, Feinberg (2003) synthesized developmental, systemic, and social-learning frameworks into an integrated model comprising four core structural domains: (a) childrearing agreement, (b) division of parental labor, (c) joint management of family dynamics (including boundary maintenance and conflict management), and (d) support versus undermining. Feinberg argued that the coparenting relationship functions as the central organizational axis of the nuclear family. It operates as an interpretive filter through which individual parent characteristics (e.g., parental depression, personality traits) and contextual stressors (e.g., socioeconomic strain, work-family conflict) affect the parent-child relationship.

Furthermore, the theoretical framework incorporates the Spillover Hypothesis and the Compensatory Model (Erel & Burman, 1995). Spillover suggests that negative affect, hostility, and dysregulation generated within the adult interparental dyad transfer directly into interactions with children, yielding harsh, erratic, or withdrawn parenting. Conversely, a robust, supportive coparenting relationship acts as an ecological buffer, protecting the parent-child subsystem from the detrimental consequences of external economic stress, infant negative emotionality, and individual parental vulnerabilities.

Validity

Empirical validation of the CRS across diverse socio-demographic samples, family structures, and international cohorts demonstrates exceptional psychometric validity across multiple domains:

Construct and Structural Validity

In the seminal psychometric validation study by Feinberg, Brown, and Kan (2012) involving both mothers and fathers followed across multiple waves from the prenatal period through early childhood (ages 6, 12, 18, and 36 months), structural equation models demonstrated that the seven proposed subscales loaded reliably onto an overarching second-order coparenting factor. Confirmatory factor analysis confirmed that while each subscale captures distinct behavioral variance, they coalesce into a coherent global construct representing overall coparental quality.

Convergent Validity

The CRS demonstrates robust, theory-consistent correlations with established measures of marital quality, parental stress, and sensitive caregiving. In Feinberg et al. (2012), maternal and paternal CRS scores correlated positively with romantic relationship adjustment measured via the Dyadic Adjustment Scale (DAS; correlations ranging from $r = .50$ to $.70$) and observational ratings of interparental warmth and teamwork during triadic interactions ($r = .35$ to $.55$). Additionally, higher coparenting support and agreement on the CRS correlated significantly with lower parental stress on the Parenting Stress Index (PSI) and higher parental self-efficacy.

Divergent and Discriminant Validity

Crucially, longitudinal modeling indicates that the CRS possesses divergent validity from general marital satisfaction. In multivariable regression models predicting parenting quality and child behavioral outcomes, the CRS explained significant incremental variance after controlling for marital satisfaction, neuroticism, and baseline depressive symptoms. This confirms that coparenting is not merely a cognitive byproduct or halo effect of a happy marriage, but an autonomous behavioral subsystem.

Predictive and Criterion Validity

Extensive longitudinal data confirm that early scores on the CRS predict both child and parent developmental trajectories. Higher CRS total scores and lower scores on Undermining and Exposure to Conflict prospectively predict:

• Lower levels of child internalizing behaviors (e.g., anxiety, depression, somatic complaints) and externalizing problems (e.g., aggression, oppositional defiance) at ages 3 and 7.
• Enhanced child executive functioning, physiological stress regulation (cortisol slopes), and secure attachment classifications.
• Decreased risk of parental postpartum depression, parental burnout, and maternal emotional exhaustion.

Reliability

The Coparenting Relationship Scale exhibits high internal consistency and longitudinal stability across both maternal and paternal self-reports:

Internal Consistency

In the primary validation cohorts (Feinberg et al., 2012), Cronbach’s alpha ($lpha$) for the overall CRS composite score was consistently high for both mothers and fathers across all assessment timepoints:

• Total Coparenting Scale: $lpha = .91$ to $.94$ across infant ages 6, 12, 18, and 36 months.
• Coparenting Agreement: $lpha = .78$ to $.84$.
• Coparenting Closeness: $lpha = .80$ to $.86$.
• Exposure to Conflict: $lpha = .81$ to $.87$.
• Coparenting Support: $lpha = .85$ to $.89$.
• Coparenting Undermining: $lpha = .79$ to $.85$.
• Endorse Partner Parenting: $lpha = .82$ to $.87$.
• Division of Labor: $lpha = .70$ to $.78$ (noting that this scale comprises fewer items).

Test-Retest Stability and Cross-Time Invariance

Test-retest correlation coefficients across 6-month and 12-month intervals demonstrate moderate-to-high stability ($r = .65$ to $.80$), reflecting both the enduring stylistic traits of coparenting interactions and its developmental sensitivity to family life transitions. Longitudinal metric and scalar invariance have been demonstrated across infant developmental stages, ensuring that changes in CRS scores over time reflect genuine shifts in family functioning rather than measurement artifact.

Factor Analysis

The structural properties of the CRS were rigorously evaluated using exploratory factor analysis (EFA) during instrument development, followed by confirmatory factor analysis (CFA) across diverse family samples (Feinberg et al., 2012).

First-Order and Second-Order CFA Models

Initial structural testing confirmed that a single unifactorial model provided poor fit to the data, confirming the multi-dimensionality of the construct. A seven-factor first-order model exhibited strong goodness of fit across both maternal and paternal data:

• Comparative Fit Index (CFI): $ge .92$ to $.95$ across longitudinal waves.
• Tucker-Lewis Index (TLI): $ge .91$ to $.94$.
• Root Mean Square Error of Approximation (RMSEA): $.042$ to $.055$ ($90%\text{ CI } [.038, .059]$).
• Standardized Root Mean Square Residual (SRMR): $le .058$.

All standardized factor loadings for individual items onto their designated subscales were statistically significant ($p < .001$), with standardized loadings generally exceeding $lambda = .55$, and the majority loading between $.65$ and $.85$.

Hierarchical and Bifactor Structure

To justify the computation of an overall composite coparenting score alongside subscale scores, Feinberg and colleagues tested a hierarchical second-order model in which the seven first-order factors loaded onto a single higher-order “Total Coparenting Quality” dimension. Standardized loadings of the first-order factors onto the second-order general coparenting factor were consistently robust: Support ($\gamma \approx .82$), Endorsement ($\gamma \approx .85$), Closeness ($\gamma \approx .78$), Agreement ($\gamma \approx .75$), Undermining ($\gamma \approx -.72$), Exposure to Conflict ($\gamma \approx -.61$), and Division of Labor ($\gamma \approx .48$). This confirms that calculating both individual domain profiles and an omnibus coparenting index is psychometrically justified.

Instrument / Measurement Tool

The Coparenting Relationship Scale is an empirically validated self-report instrument. Below are the technical specifications, structural taxonomy, and scoring directives:

• Instrument Name: Coparenting Relationship Scale (CRS)
• Authors: Mark E. Feinberg, Ph.D., Lynette D. Brown, Ph.D., & Michael L. Kan, Ph.D.
• Publication Year: 2012 (foundational theory: 2003)
• Target Population: Parents, coparents, or primary caregivers sharing childrearing responsibilities (married, cohabiting, or separated/divorced) caring for children from infancy through adolescence.
• Administration Format: Paper-and-pencil, computer-assisted self-interview (CASI), or online survey platforms.
• Administration Time: Approximately 8 to 12 minutes for the full 35-item scale; 3 to 5 minutes for the 14-item brief version.
• Item Count: 35 items (7 subscales).
• Response Anchors:
  • General Scale (Items 1–9, 15–35): 7-point Likert scale: 0 = Not true of us / Never or rarely, 1 = A little true of us, 2 = Somewhat true of us, 3 = Moderately true of us, 4 = Quite a bit true of us, 5 = Very true of us, 6 = Very true of us / Most of the time (or 0 = Not true of most aspects of coparenting to 6 = True of most aspects of coparenting).
  • Exposure to Conflict Scale (Items 10–14): 7-point frequency scale: 0 = Never, 1 = Rarely (once or twice a month), 2 = Sometimes (once or twice a week), 3 = Moderately often (a few times a week), 4 = Often (once a day), 5 = Very often (several times a day), 6 = Several times a day.
• Subscale Composition:
  • Coparenting Agreement (4 items): Items 1, 2, 3, 4.
  • Coparenting Closeness (5 items): Items 5, 6, 7, 8, 9.
  • Exposure to Conflict (5 items): Items 10, 11, 12, 13, 14.
  • Coparenting Support (6 items): Items 15, 16, 17, 18, 19, 20.
  • Coparenting Undermining (6 items): Items 21, 22, 23, 24, 25, 26.
  • Endorse Partner Parenting (7 items): Items 27, 28, 29, 30, 31, 32, 33.
  • Division of Labor (2 items): Items 34, 35.
• Scoring and Transformation Procedures:
  • Subscale Scores: Mean or sum scores can be derived for each of the seven subscales. Items within positive dimensions are scored directly. For subscales with negatively keyed items (e.g., disagreement phrasing within the Agreement subscale), reverse scoring is applied ($6 – \text{Item Score}$).
  • Total Composite Score: To calculate the overall coparenting composite, all items on the Coparenting Undermining (Items 21–26) and Exposure to Conflict (Items 10–14) subscales must be reverse-scored prior to aggregating ($6 – X$). The grand mean or sum of all 35 items is then computed. Higher composite scores signify greater overall coparenting competence, cooperation, and systemic health.

Permissions & Fee and Test Year

The Coparenting Relationship Scale was published in its standardized psychometric form in 2012 by Dr. Mark E. Feinberg, Dr. Lynette D. Brown, and Dr. Michael L. Kan in the journal Parenting: Science and Practice. The conceptual architecture was established in Feinberg’s foundational 2003 treatise.

Licensing and Academic Access: The CRS is considered an open-access psychometric instrument for non-commercial academic, scientific, and educational research purposes. Researchers and clinical practitioners may administer the scale without licensing fees. However, appropriate scholarly attribution must be provided by citing the primary validation papers (Feinberg, 2003; Feinberg et al., 2012). For commercial deployments, large-scale health-system integrations, or translation into languages other than those formally published, permission should be requested directly from Dr. Mark E. Feinberg via the Edna Bennett Pierce Prevention Research Center at The Pennsylvania State University.

References

• Belsky, J. (1984). The determinants of parenting: A process model. Child Development, 55(1), 83–96. https://doi.org/10.2307/1129836
• Cummings, E. M., & Davies, P. T. (2002). Effects of marital conflict on children: Recent advances and emerging themes in process-oriented research. Journal of Child Psychology and Psychiatry, 43(1), 31–63. https://doi.org/10.1111/1467-8624.00161
• Erel, O., & Burman, B. (1995). Interrelatedness of marital relations and parent-child relations: A meta-analytic review. Psychological Bulletin, 118(1), 108–132. https://doi.org/10.1037/0033-2909.118.1.108
• Feinberg, M. E. (2003). The internal structure and ecological context of coparenting: A framework for research and intervention. Parenting: Science and Practice, 3(2), 95–131. https://doi.org/10.1207/S15327922PAR0302_01
• Feinberg, M. E., Brown, L. D., & Kan, M. L. (2012). A multi-domain self-report measure of coparenting. Parenting, 12(1), 1–21. https://doi.org/10.1080/15295192.2012.638870
• Feinberg, M. E., & Kan, M. L. (2008). Establishing family foundations: Intervention effects on coparenting, parent/infant well-being, and parent-child relations. Journal of Family Psychology, 22(2), 253–263. https://doi.org/10.1037/0893-3200.22.2.253
• McHale, J. P. (1995). Coparenting and triadic family interactions during infancy. Child Development, 66(4), 985–996. https://doi.org/10.1111/j.1467-8624.1995.tb00918.x
• McHale, J. P. (1997). Overt and covert coparenting processes in the family. Family Process, 36(2), 183–201. https://doi.org/10.1111/j.1545-5300.1997.00183.x
• Minuchin, S. (1974). Families and family therapy. Harvard University Press. https://doi.org/10.4159/9780674041127

Items of the Scale