Conflict with Family scale

Abstract

The Conflict with Family scale—derived directly from the foundational Conflict Tactics Scales (CTS; Form N / Sibling and Parent-Child adaptations) developed by Murray A. Straus (1979)—stands as one of the most widely implemented psychometric and behavioral survey instruments in family sociology, clinical psychology, and developmental psychopathology. Designed to quantify both constructive and coercive behaviors utilized during interpersonal disputes within family dyads (specifically between siblings or between parents and offspring), the scale captures behavioral responses across a continuum of conflict resolution modalities. The instrument comprises 18 standardized behavioral items categorized into three primary psychometric domains: Reasoning / Negotiation (3 items), Verbal / Psychological Aggression (6 items), and Physical Aggression / Violence (9 items, further stratified psychometrically into Minor Violence and Severe Violence). Respondents rate behavioral occurrences over a designated referent period (typically the preceding 12 months) utilizing an authentic 7-point or 8-point semi-logarithmic frequency metric ranging from 0 (“Never”) to 6 (“More than 20 times”), with an optional historical contingency score (7 = “Not in the past year, but it did happen before”). Decades of empirical administration indicate that the scale demonstrates acceptable-to-robust internal consistency across diverse community and clinical samples, with Cronbach’s alpha coefficients commonly falling between α = .50 and .72 for Reasoning, α = .75 and .86 for Verbal Aggression, and α = .70 and .92 for Physical Aggression. Construct, convergent, criterion, and factorial validity have been confirmed across hundreds of empirical studies spanning multiple developmental stages, cross-cultural settings, and clinical populations, solidifying its status as an indispensable benchmark for family violence epidemiological research.

Keywords

Conflict Tactics Scales, family conflict, sibling aggression, parent-child violence, behavioral measurement, domestic violence, physical aggression, verbal aggression, psychometrics, family systems.

Authors

The original conceptualization, operationalization, and empirical validation of the Conflict Tactics Scales family of instruments was directed by Murray A. Straus, Ph.D. (1926–2016), Professor Emeritus of Sociology and founder/co-director of the Family Research Laboratory at the University of New Hampshire. Dr. Straus was a pioneer in family violence research whose empirical work demystified the prevalence, etiology, and intergenerational transmission of intrafamilial aggression. His seminal works—alongside esteemed collaborators such as Richard J. Gelles, Ph.D. (The University of Pennsylvania) and Suzanne K. Steinmetz, Ph.D. (Indiana University–Purdue University Indianapolis)—fundamentally transformed sociological and psychological conceptions of domestic dynamics.

The adaptation of the CTS for sibling and parent-child dyads was systematized through extensive research programs funded by the National Institute of Mental Health (NIMH) and hosted at the Family Research Laboratory (FRL). Subsequent clinical compilations and dissemination by researchers such as Joel Fischer and Kevin J. Corcoran (2007) preserved these behavioral items for widespread therapeutic assessment and research across social work and child welfare disciplines.

Purpose

Intrafamilial conflict represents an inherent, ubiquitous dimension of human relational systems. However, the specific tactics family members deploy to resolve ideological, resource-based, or emotional disputes vary along an expansive spectrum—ranging from rational discourse and cooperative problem-solving to severe corporal violence and weapon utilization. The overarching purpose of the Conflict with Family scale (Conflict Tactics Scale – Sibling or Parent Version) is to operationalize and objectively quantify the behavioral acts that manifest when conflict arises between household members, specifically focusing on interactions between siblings or between parents and their children.

Prior to the establishment of the CTS framework by Straus in 1979, the measurement of family discord was heavily compromised by vague clinical impressions, subjective satisfaction questionnaires, or extreme criminal-justice-derived definitions of assault that obscured normative and sub-clinical levels of aggression. The primary objectives of this scale include:

• Epidemiological Surveillance: Measuring the annual incidence and lifetime prevalence of negotiation, verbal hostility, and physical force within non-clinical and clinical family environments.
• Dyadic Behavioral Mapping: Capturing bidirectional dynamics by evaluating both self-reported perpetration (“tactics used by the respondent”) and victimization (“tactics directed toward the respondent by the sibling or parent”).
• Clinical Assessment and Risk Formulation: Identifying early behavioral trajectories of child maltreatment, sibling physical abuse, and escalation patterns before acute physical trauma or legal intervention occurs.
• Intervention Evaluation: Serving as a standardized pre-test and post-test outcome metric for family therapy, parent training programs, conflict resolution curricula, and restorative justice protocols.

By assessing explicit, countable behavioral acts rather than emotional states (e.g., assessing “slapped the other one” rather than “felt intense hatred”), the scale provides an objective behavioral ledger of conflict tactics that circumvents internal cognitive rationalizations and minimizes ambiguity in self-report research.

Psychological Construct

The fundamental psychological construct quantified by the scale is Interpersonal Conflict Tactic Engagement within family systems. Grounded in behavioral and sociological taxonomies, the construct is conceptualized not as a single global trait, but as a hierarchical, multi-dimensional array of observable behavioral choices deployed in the presence of perceived goal interference. The instrument operationalizes three distinct latent constructs:

1. Reasoning / Cognitive-Behavioral Negotiation

This dimension reflects constructive, non-violent problem-solving strategies aimed at resolving the core dispute through rational discourse, informational leverage, and mediation. It is characterized by attempts to de-escalate tension, explain positions, and reach mutually agreeable solutions. Behaviors within this construct encompass discussing issues calmly, collecting objective evidence or information to substantiate one’s argument, and recruiting neutral third parties (such as a counselor, another relative, or a mediator) to facilitate reconciliation. This represents the prosocial baseline of familial conflict engagement.

2. Verbal / Psychological Aggression

Verbal and symbolic aggression entails intentional communications—verbal or non-verbal—designed to inflict emotional distress, demean, intimidate, or psychologically overwhelm the other party. Rather than addressing the substantive disagreement, the focal point shifts toward invalidating or dominating the person. Indicators within this domain include overt hostility (e.g., swearing, insulting), passive-aggressive or emotionally punitive actions (e.g., sulking, refusing communication, stomping out of the immediate environment), expressive distress cues used manipulatively or reactively (e.g., crying), and explicit verbal threats of impending physical destruction or harm. While distinct from physical battery, psychological aggression consistently serves as an empirical precursor and parallel manifestation of physical escalation.

3. Physical Aggression / Violence

Physical violence is defined operationally by Straus as an act carried out with the intention, or perceived intention, of causing physical pain or injury to another individual. In psychometric analysis, this construct is structurally separated into two graded severity tiers:

• Minor (Moderate) Violence: Instrumental or expressive uses of force that typically carry low probabilities of severe medical trauma. Behaviors include throwing or kicking inanimate objects (expressive displacement), throwing an object directly at the relative, and physically pushing, grabbing, or shoving.
• Severe Violence: Lethal or high-injury-potential behaviors intended to inflict pronounced somatic trauma or absolute physical subjugation. Indicators range from slapping, kicking, biting, and punching with a closed fist, to beating up the victim, hitting with a weapon or blunt object, and brandishing or discharging firearms or edged weapons.

By establishing behavioral operationalizations across these three constructs, the scale avoids subjective definitions of abuse and focuses on unambiguous behavioral events.

Theoretical Framework

The scale is anchored in the convergence of three foundational theoretical models: Conflict Theory, Social Learning Theory, and General Systems Theory.

1. Conflict Theory of the Family

Originating from the classical sociological frameworks of Georg Simmel and Lewis A. Coser, and adapted to domestic life by Jetse Sprey and Murray Straus, conflict theory posits that conflict is an inevitable, ubiquitous feature of all human social groups. Because family groups involve high intimacy, interdependency, shared resources, diverse developmental goals, and structural power differentials (e.g., generation, age, gender), clashes of interests are mathematically guaranteed. Therefore, family dysfunction or pathology is not defined by the presence of conflict, but rather by the tactics used to manage that conflict. The CTS was directly constructed to reflect this theoretical axiom: peaceful negotiation, psychological manipulation, and raw physical force are viewed as competing alternative resources leveraged within an interpersonal power struggle.

2. Social Learning Theory and Modeling

Synthesized by Albert Bandura (1973, 1977), social learning theory demonstrates that aggressive patterns are acquired through direct conditioning and observational learning. Within the family context, siblings and children observe parental conflict resolutions, internalize script structures regarding the legitimacy of physical coercion, and rehearse these behaviors in horizontal (sibling-sibling) or vertical (parent-child) interactions. The CTS operationalizes behaviors along a hierarchical continuum precisely because social learning predicts behavioral escalation: when non-violent tactics fail to achieve instrumental compliance, individuals progress through modeled hierarchies toward increasingly coercive strategies.

3. Family Systems and Cybernetic Feedback Loops

Under General Systems Theory, family conflict operates via circular feedback mechanisms rather than unilateral causation. A parent’s verbal insult may trigger a child’s withdrawal; a sibling’s physical shove may stimulate an escalated physical assault. By allowing respondents to rate both their own behavioral outputs and the actions of the target family member, the Conflict Tactics framework captures the reciprocal, self-reinforcing loops of coercion that maintain relational homeostasis or catalyze systemic crises.

Validity

The psychometric validity of the Conflict with Family scale / CTS framework has been extensively investigated and documented in hundreds of independent empirical studies across family sociology, pediatric psychology, criminology, and clinical assessment.

1. Construct and Criterion Validity

Construct validity is substantiated by consistent, theoretically predicted relationships between scale scores and validated external criteria. The Physical Aggression subscale correlates robustly with external measures of family discord, including the Dyadic Adjustment Scale (DAS), the Child Abuse Potential Inventory (CAPI), and police contact records for domestic disturbances. Research by Straus and Gelles (1990) revealed that families scoring high on severe physical tactics displayed significantly elevated rates of psychological distress, substance abuse, juvenile delinquency, and adolescent externalizing disorders, confirming strong criterion validity.

2. Convergent and Discriminant Validity

Convergent validity has been established through multi-informant assessment strategies. Studies comparing sibling-on-sibling aggression reports with independent corroboration from parents demonstrate moderate-to-strong concordance coefficients, typically ranging from r = .40 to .65 for physical violence items. Furthermore, self-reported victimization and perpetration scores correlate significantly with clinician-administered observational ratings of intrafamilial conflict tasks.

Discriminant validity is evidenced by the distinct empirical separation between the Reasoning dimension and the Aggression dimensions. Reasoning scales systematically show zero or negative correlations with indices of psychopathology and family dysfunction, whereas Verbal and Physical Aggression exhibit strong positive correlations. Additionally, research demonstrates that the Physical Aggression dimension discriminates clearly between clinical child-maltreating populations and normative community samples with high statistical power (Cohen’s d frequently exceeding 1.20).

3. Cross-Cultural and Subgroup Validity

The cross-national validity of the instrument was rigorously confirmed through the International Dating Violence Study and cross-cultural parent-child studies across more than 30 nations. Despite minor variations in baseline endorsement frequencies influenced by regional cultural norms surrounding physical discipline, the internal psychometric behavior of the items and the latent separation between reasoning, psychological hostility, and severe physical battery remains stable across distinct cultural and linguistic adaptations.

Reliability

The reliability of the Conflict Tactics Scales adapted for family, sibling, and parent-child dyads has been examined extensively across non-clinical, at-risk, and clinical samples:

1. Internal Consistency

Internal consistency estimates (measured via Cronbach’s alpha) vary logically as a function of subscale length, item content heterogeneity, and population base rates:

• Reasoning / Negotiation (3 items): Cronbach’s alpha values typically fall within the moderate range (α = .50 to .72). Because this subscale contains only three items that capture structurally diverse prosocial behaviors (calm discussion vs. gathering evidence vs. bringing in a third party), lower alpha values are psychometrically expected.
• Verbal / Psychological Aggression (6 items): Demonstrates high internal consistency across community and clinical samples, with α coefficients consistently ranging from .75 to .86.
• Physical Aggression / Violence (9 items): Demonstrates strong internal reliability in high-incidence samples (α = .80 to .92). In low-base-rate, normative community samples, alpha coefficients for severe violence occasionally dip (α = .65 to .75) due to severe skewness and zero-inflation of life-threatening items (e.g., knife or gun use), a well-recognized statistical artifact in violence epidemiology that does not undermine its construct utility.

2. Test-Retest Reliability and Temporal Stability

Test-retest reliability evaluations over intervals spanning two weeks to one month have demonstrated robust stability coefficients. For adolescent reports of sibling interactions, test-retest correlations range from r = .70 to .85 for physical and verbal aggression subscales. Parent-child reporting demonstrates comparable stability (r = .68 to .82). Over longer durations (e.g., 6 to 12 months), stability coefficients diminish predictably, reflecting true developmental shifts, behavioral evolution, or the consequences of clinical interventions rather than measurement error.

Factor Analysis

The structural dimensionality of the Conflict Tactics Scales has been investigated through repeated exploratory factor analyses (EFA) and confirmatory factor analyses (CFA).

1. Exploratory Factor Analysis (EFA)

Early principal axis factoring and principal components analyses by Straus (1979) using varimax and oblimin rotations systematically extracted three primary orthogonal and oblique factors corresponding to Reasoning, Verbal Aggression, and Physical Violence. The Reasoning items (Items 1–3) load cleanly onto Factor 1 (factor loadings ranging from .55 to .78) with negligible cross-loadings onto violent dimensions. Verbal hostility items (Items 4–9) load onto Factor 2 (loadings .48 to .81). Physical aggression items (Items 10–18) load robustly onto Factor 3 (loadings .52 to .89).

2. Confirmatory Factor Analysis (CFA) and Model Fit

Subsequent modern CFA investigations evaluating family, parent-child, and sibling adaptations have evaluated competing structural models:

• Unidimensional Model: A single general conflict factor demonstrates universally unacceptable fit across all indices (e.g., CFI < .70, RMSEA > .14).
• Three-Factor Intercorrelated Model: Testing three latent constructs (Reasoning, Verbal Aggression, and Combined Physical Violence) yields significantly improved fit metrics (CFI ≥ .92, TLI ≥ .90, RMSEA ≈ .05 to .06).
• Four-Factor Hierarchical / Correlated Model: Stratifying the physical dimension into Minor Violence (throwing things, pushing/shoving) and Severe Violence (hitting with fists, beating up, weapons) yields optimal empirical fit across diverse populations (CFI ≥ .95, TLI ≥ .94, RMSEA ≤ .048, SRMR ≤ .045).

3. Factor Loadings Table (Typical Model Fit Representation)

Instrument / Measurement Tool

The operational administration and technical characteristics of the Conflict with Family scale (CTS Sibling/Parent Version) are structured as follows:

• Instrument Name: Conflict with Family scale (Conflict Tactics Scale – Sibling or Parent Version / CTS-1 Form N Adaptation).
• Test Type: Standardized behavioral self-report questionnaire / structured interview schedule.
• Target Dyads: Sibling-sibling relationships (brother or sister) or Parent-child relationships (father, mother, son, or daughter).
• Item Count: 18 standardized behavioral items (frequently administered bidirectionally across 36 prompts: 18 assessing respondent’s perpetration and 18 assessing target relative’s actions).
• Referent Timeframe: Preceding 12 months (past year annual prevalence), with optional lifetime historical tracking.
• Authentic Response Scale:
  • 0 = Never
  • 1 = Once that year
  • 2 = Twice
  • 3 = 3-5 times
  • 4 = 6-10 times
  • 5 = 11-20 times
  • 6 = More than 20 times
  • 7 = Not in the past year, but it did happen before (optional historical code)
• Subscale Composition:
  • Reasoning / Negotiation: Items 1, 2, 3
  • Verbal / Psychological Aggression: Items 4, 5, 6, 7, 8, 9
  • Physical Aggression / Violence: Items 10, 11, 12, 13, 14, 15, 16, 17, 18
    • Minor Violence: Items 10, 11, 12
    • Severe Violence: Items 13, 14, 15, 16, 17, 18
• Scoring Methodologies:
  • Prevalence Scoring (Dichotomous): A subscale prevalence score is generated by assigning a 1 if the respondent endorsed any item in that subscale at a frequency ≥ 1, and 0 if all items were coded 0. This yields percentage rates of families engaging in negotiation, psychological abuse, or physical battery.
  • Chronicity / Frequency Scoring (Midpoint Metric): Because categories represent numerical ranges, standard CTS scoring protocols convert response categories to the approximate midpoint of the behavioral occurrences:
    • 0 = 0 occurrences
    • 1 = 1 occurrence
    • 2 = 2 occurrences
    • 3 = 4 occurrences (midpoint of 3–5)
    • 4 = 8 occurrences (midpoint of 6–10)
    • 5 = 15 occurrences (midpoint of 11–20)
    • 6 = 25 occurrences (conservative assignment for > 20)
    • 7 = 0 occurrences during the 12-month referent window

    Midpoint scores are summed across subscale items to calculate estimated total conflict events per year.

  • Direct Category Summation: Alternatively, raw category scores (0 through 6) are summed directly within each subscale to create continuous ordinal indices.
• Reverse Scoring: No reverse scoring is utilized. Higher scores unambiguously indicate higher behavioral frequency within each respective domain.

Permissions & Fee and Test Year

The original Conflict Tactics Scales (CTS-1) was published in 1979 by Murray A. Straus in the Journal of Marriage and the Family, following preliminary developmental studies dating back to 1974. Dr. Straus maintained a long-standing academic tradition of disseminating the original CTS instruments freely for non-profit academic research, scientific inquiry, and educational evaluation via the Family Research Laboratory at the University of New Hampshire.

While the revised CTS2 (partner version) is commercially distributed and copyrighted by Western Psychological Services (WPS), the foundational CTS-1 family versions (including Sibling and Parent adaptations published in academic monographs and sourcebooks such as Fischer & Corcoran, 2007) are widely accessible in the public domain for research use. Researchers must appropriately credit Murray A. Straus and reference the original validation papers (Straus, 1979, 1990). Commercial exploitation, publication within fee-charging digital assessment platforms, or clinical reprinting requires written permission and appropriate licensing agreements from the copyright holders or the University of New Hampshire Family Research Laboratory.

References

• Bandura, A. (1973). Aggression: A social learning analysis. Prentice-Hall.
• Bandura, A. (1977). Social learning theory. Prentice-Hall.
• Coser, L. A. (1956). The functions of social conflict. Free Press.
• Fischer, J., & Corcoran, K. J. (2007). Measures for clinical practice and research: A sourcebook (4th ed., Vol. 1, pp. 227–231). Oxford University Press.
• Gelles, R. J., & Straus, M. A. (1988). Intimate violence: The causes and consequences of abuse in the American family. Simon & Schuster.
• Simmel, G. (1955). Conflict and the web of group affiliations (K. H. Wolff & R. Bendix, Trans.). Free Press.
• Sprey, J. (1969). The family as a system in conflict. Journal of Marriage and the Family, 31(4), 699–706. https://doi.org/10.2307/349306
• Straus, M. A. (1974). Leveling, civility, and violence in the family. Journal of Marriage and the Family, 36(1), 13–29. https://doi.org/10.2307/351128
• Straus, M. A. (1979). Measuring intrafamily conflict and violence: The Conflict Tactics (CT) Scales. Journal of Marriage and the Family, 41(1), 75–88. https://doi.org/10.2307/351733
• Straus, M. A. (1990). The Conflict Tactics Scale and its critics: An evaluation and new data on validity and reliability. In M. A. Straus & R. J. Gelles (Eds.), Physical violence in American families: Risk factors and adaptations to violence in 8,145 families (pp. 49–73). Transaction Publishers.
• Straus, M. A., & Gelles, R. J. (Eds.). (1990). Physical violence in American families: Risk factors and adaptations to violence in 8,145 families. Transaction Publishers.
• Straus, M. A., Hamby, S. L., Boney-McCoy, S., & Sugarman, D. B. (1996). The Revised Conflict Tactics Scales (CTS2): Development and preliminary psychometric data. Journal of Family Issues, 17(3), 283–316. https://doi.org/10.1177/019251396017003001

13. Items of the Scale (Questionnaire)