Communal and Exchange orientation scale (COS)

Abstract

The Communal and Exchange Orientation Scale (COS), developed through the foundational work of Margaret S. Clark and Judson Mills (1979, 1987, 2012), represents an essential psychometric instrument in social and personality psychology designed to assess individual differences in interpersonal orientations. Rooted in Clark and Mills’ landmark theory of relationship types, the instrument operationalizes the degree to which individuals follow communal norms—giving benefits out of genuine concern for another’s welfare without expecting direct payback—versus exchange norms, wherein benefits are given with the explicit expectation of receiving comparable benefits in return or as repayment for past benefits. The full measurement battery comprises two distinct, empirically independent subscales: the 14-item Communal Orientation Scale (Clark, Ouellette, Powell, & Milberg, 1987) and the 9-item Exchange Orientation Scale (Clark & Mills, 1979; Clark et al., 1987; Mills & Clark, 1982). Both inventories utilize a 7-point Likert response format ranging from 1 (extremely uncharacteristic of me) to 7 (extremely characteristic of me). Extensive psychometric investigations over four decades demonstrate that the Communal Orientation Scale yields high internal consistency (Cronbach’s α typically ranging between .75 and .84), while the Exchange Orientation Scale demonstrates robust reliability (α typically between .70 and .79). Confirmatory factor analytic investigations consistently confirm the distinct orthogonal or mildly uncorrelated two-dimensional structure of the constructs, establishing that high communal orientation does not imply low exchange orientation. The scales exhibit robust convergent validity with empathy, prosociality, agreeableness, and altruism, alongside established divergent validity against social desirability, Machiavellianism, and generalized neuroticism. This comprehensive psychometric review explores the instrument’s operational characteristics, structural fidelity, cross-cultural validity, and theoretical significance across interpersonal, organizational, and clinical domains.

Keywords

Communal Orientation Scale, Exchange Orientation Scale, Margaret Clark, Judson Mills, interpersonal norms, prosocial behavior, relationship theory, social exchange theory, altruism, psychometric validation, scale development, reciprocity norms

Authors

The theoretical architecture and empirical measurement of communal and exchange orientations were established by prominent social psychologists:

• Margaret S. Clark, Ph.D.: John M. Musser Professor of Psychology at Yale University, formerly at Carnegie Mellon University. Dr. Clark is an internationally renowned pioneer in the study of close relationships, emotional expression, interpersonal tracking, and responsiveness to partner needs.
• Judson Mills, Ph.D. (1931–2009): Formerly Professor Emeritus of Psychology at the University of Maryland, College Park. A classic social psychologist who collaborated closely with Leon Festinger on cognitive dissonance before formulating relationship norm theory alongside Dr. Clark.
• Key Psychometric Co-Investigators: Richard R. Ouellette, Martha C. Powell, and Sandra Milberg, who collaborated with Clark in 1987 to formalize and empirically validate the 14-item Communal Orientation Scale published in the Journal of Personality and Social Psychology.

Purpose

The primary purpose of the Communal and Exchange Orientation Scale is to assess stable individual differences in interpersonal social cognitive schema regarding how benefits, assistance, and emotional responsiveness should be distributed and reciprocated in human interactions. In everyday social interactions, individuals differ markedly in the relational rules they prioritize. While early sociological and behavioral paradigms (such as classical Social Exchange Theory) postulated that all human interaction is fundamentally transactional and governed by cost-benefit accounting, Clark and Mills demonstrated that human relations are fundamentally bifurcated into communal and exchange domains.

The Communal Orientation Scale measures an individual’s chronic tendency to attend to others’ needs, to experience distress when others are suffering or when one’s own needs are ignored by close others, and to provide care without expecting immediate or contingent repayment. Conversely, the Exchange Orientation Scale measures a person’s propensity to monitor inputs and outputs, maintain strict symmetry in favors, expect direct and immediate reciprocity for assistance rendered, and feel discomfort when accounts remain unbalanced. Clinically and empirically, measuring these orientations serves multiple critical purposes:

• Relational and Marital Diagnostics: Dyadic research demonstrates that asymmetric relationship orientations between romantic partners predict chronic relational conflict, reduced marital satisfaction, and distinct vulnerability to passive-aggressive scorekeeping.
• Organizational and Workplace Behavior: In industrial-organizational psychology, exchange orientation predicts transactional adherence to contractual duties and sensitivity to organizational justice, whereas communal orientation predicts organizational citizenship behaviors (OCB), voluntary mentorship, and cooperative team cohesion.
• Prosocial Behavior and Altruism Research: The scale enables experimental psychologists to differentiate genuine altruistic motivation from strategic, reputation-building reciprocity or fear of social debt.
• Clinical and Personality Psychology: Deviant manifestations of these constructs provide valuable diagnostic insights. Pathologically elevated exchange orientation frequently correlates with narcissistic entitlement, paranoid monitoring of interpersonal exploitation, or avoidant attachment. Conversely, excessively high communal orientation absent healthy boundary regulation correlates with unmitigated communion, codependency, and caregiver burnout.

Psychological Construct

The psychological constructs operationalized by this measurement instrument represent distinct, cognitive-affective interpersonal orientations rather than opposite ends of a single continuum. Decades of structural and experimental validation establish that communal and exchange orientations operate orthogonally; a person may be high on both, low on both, or high on one and low on the other.

1. Communal Orientation

Communal orientation is defined as an individual’s enduring predisposition to adhere to communal rules across social interactions. Individuals with a high communal orientation believe that members of a community or relationship have a general responsibility for one another’s welfare. This construct encompasses several core psychological facets:

• Responsiveness to Others’ Needs: A proactive cognitive and behavioral stance wherein one actively attends to, detects, and seeks to alleviate another person’s distress or functional deficits (e.g., “When making a decision, I take other people’s needs and feelings into account”; “I often go out of my way to help another person”).
• Expectation of Mutual Responsiveness: The belief that significant others should similarly attend to one’s own welfare out of care rather than debt (e.g., “I expect people I know to be responsive to my needs and feelings”).
• Vulnerability and Need Communication: A comfort with seeking assistance during times of distress, accompanied by emotional sensitivity when support is withheld (e.g., “When I have a need, I turn to others I know for help”; “When I have a need that others ignore, I’m hurt”).
• Absence of Need Avoidance: Rejection of detachment norms that encourage emotional suppression or isolation in times of trouble (reversed items: “When people get emotionally upset, I tend to avoid them”; “People should keep their troubles to themselves”).

2. Exchange Orientation

Exchange orientation refers to an individual’s dispositional tendency to expect that benefits given should be balanced by benefits received, and that benefits received incur a direct obligation to repay. It reflects an ongoing psychological ledger that tracks relational inputs and outputs:

• Contingent Reciprocity Expectations: The belief that unilateral giving is inappropriate and that generosity must be answered with equivalent compensation (e.g., “When I give something to another person, I generally expect something in return”).
• Equivalence and Tit-for-Tat Monitoring: The active tracking of material and interpersonal favors to ensure neither party holds an unfair advantage or burden (e.g., “It’s best to make sure things are always kept ‘even’ between two people in relationship”; “When someone buys me a gift, I try to buy that person as comparable a gift as possible”).
• Obligation and Aversion to Indebtedness: Distress experienced when placed in a state of asymmetric obligation, leading to immediate repayment urges (e.g., “When people receive benefits from others, they ought to repay those others right away”).
• Transactional Boundary Setting: Restricting resource allocation exclusively to individuals with proven track records of reciprocity (e.g., “I usually give gifts only to people who have given me gifts in the past”).

Theoretical Framework

The theoretical bedrock of this instrument is Clark and Mills’ Communal and Exchange Relationship Theory (Clark & Mills, 1979, 1993, 2012). This framework emerged as an intellectual counterpoint to the prevailing assumption of universal Equity Theory (Adams, 1965; Walster, Berscheid, & Walster, 1973) and generalized social exchange models (Blau, 1964; Homans, 1958; Thibaut & Kelley, 1959), which maintained that all human relationships function as economic systems governed by equity formulas: $\frac{Outcomes_A}{Inputs_A} = \frac{Outcomes_B}{Inputs_B}$.

Clark and Mills proposed that human sociality is governed by two radically divergent normative relational systems:

1. Exchange Relationships: Typically observed between strangers, acquaintances, business associates, and economic trading partners. In exchange relationships, the transmission of a benefit creates a specific obligation for the recipient to return a comparable benefit within an appropriate timeframe. When a benefit is not repaid, the giver feels exploited, and when a debt is left outstanding, the receiver feels uncomfortable guilt. Crucially, offering immediate repayment in an exchange relationship is perceived as normative, polite, and reassuring, preserving the boundaries of mutual independence.

2. Communal Relationships: Typically observed between romantic partners, family members, and close friends. In communal relationships, each partner has a positive obligation to be responsive to the other’s needs when needs arise, bounded only by the partner’s resources and the hierarchical depth (communal strength) of the bond. In these relationships, keeping track of individual inputs, demanding immediate reciprocal benefits, or offering instant payment for a favor is perceived as offensive, cold, and destructive, because it signals an active rejection of communal commitment and an attempt to maintain emotional distance.

While Clark and Mills initially studied these dynamics as situational or contextual variables manipulated in laboratory settings (e.g., manipulating whether an interaction partner was available for a romantic date or was already married), they rapidly discovered profound baseline differences in participants’ individual personality inclinations. Some individuals carry an exchange mindset into family and romantic domains, tallying chores and affection, whereas others consistently apply communal logic even to brief interactions with strangers or coworkers. Thus, the Communal and Exchange Orientation Scales were formalized to capture these chronic social cognitive orientations as continuous individual difference dimensions.

Validity

The construct, convergent, discriminant, and predictive validity of the Communal and Exchange Orientation Scales have been established across a wide spectrum of empirical studies over the past four decades.

Construct and Convergent Validity

Extensive correlational research demonstrates that the Communal Orientation Scale correlates positively and significantly with established measures of dispositional empathy, perspective-taking, prosocial value orientation, and interpersonal sensitivity:

• Empathy and Compassion: Communal orientation demonstrates moderate-to-strong positive correlations with the Empathic Concern ($r \approx .45$ to $.55$) and Perspective Taking ($r \approx .35$ to $.45$) subscales of Mark Davis’s Interpersonal Reactivity Index (IRI).
• Five-Factor Model Personality Traits: Communal orientation exhibits robust positive convergence with Agreeableness ($r \approx .40$ to $.52$) and moderate associations with Extraversion ($r \approx .25$), while showing near-zero relationships with Neuroticism.
• Exchange Orientation Convergence: The Exchange Orientation Scale correlates moderately with equity sensitivity, chronic scorekeeping, social comparison orientation ($r \approx .30$ to $.42$), and transactional leadership behaviors. It shows low-to-moderate positive associations with certain dimensions of neuroticism and fearful attachment, reflecting heightened vigilance regarding interpersonal exploitation.

Discriminant Validity

Crucially, empirical investigations have demonstrated that communal and exchange orientations are structurally separate constructs rather than polar opposites. The correlation between the Communal Orientation Scale and the Exchange Orientation Scale in non-clinical adult populations consistently hovers near zero ($r = -.08$ to $r = .12$, non-significant), demonstrating robust orthogonality. Furthermore, communal orientation demonstrates clear discriminant validity against social desirability biases (such as the Marlowe-Crowne Social Desirability Scale), with correlations generally remaining trivial ($r < .15$). Exchange orientation discriminates cleanly from overt Machiavellianism; while Machiavellianism involves deceptive, exploitative intent, exchange orientation reflects a conscientious desire for strict fairness, equity, and avoiding unearned indebtedness.

Predictive and Behavioral Validity

The scales demonstrate remarkable predictive power across experimental and naturalistic settings:

• Laboratory Need Tracking: Clark, Ouellette, Powell, and Milberg (1987) demonstrated that individuals scoring high on the Communal Orientation Scale spent significantly more time viewing a light indicating that another person was working on a task and needed help, and spontaneously tracked the other person’s needs even when no reciprocal reward was possible.
• Emotional Responsiveness: Clark and Finkel (2005) established that high communal orientation significantly predicts an individual’s willingness to express vulnerable emotions (such as sadness and anxiety) to interaction partners, whereas high exchange orientation inhibits vulnerable emotional disclosures.
• Marital Adjustment and Relational Stability: Longitudinal research shows that high communal orientation among both spouses predicts elevated marital satisfaction, superior collaborative conflict resolution, and higher forgiveness over time. In contrast, elevated exchange orientation in marriage correlates with chronic resentment, transactional retaliation, and elevated divorce rates.

Reliability

Both subscales exhibit strong, consistent psychometric reliability across diverse demographic cohorts, student samples, community populations, and cross-cultural adaptations.

Internal Consistency

Across numerous empirical studies, internal consistency estimates (evaluated via Cronbach’s alpha and McDonald’s omega) have satisfied standard psychometric criteria:

• Communal Orientation Scale (14 items): The original validation sample by Clark et al. (1987) reported a Cronbach’s α of .78. Subsequent investigations across collegiate and community cohorts have routinely reported alpha coefficients ranging from .75 to .84. Item-total correlations for the 14 items generally range between .32 and .61. Reverse-scored items (such as items 3, 4, 6, 9, 10, 12, and 13) consistently load reliably onto the primary factor, although careful administration is required to prevent acquiescence artifacts.
• Exchange Orientation Scale (9 items): Reliability analyses typically yield Cronbach’s α values between .70 and .79 across American, European, and East Asian samples. Mean inter-item correlations typically range between .22 and .38, indicating healthy homogeneity without redundant item content.

Temporal Stability (Test-Retest Reliability)

Test-retest evaluations over intervals ranging from four to twelve weeks demonstrate strong temporal stability, affirming that these scales capture enduring social-personality traits rather than fluctuating emotional states:

• The Communal Orientation Scale yields test-retest reliability coefficients of $r_{tt} = .79$ to $.86$ across 4-week to 8-week assessment windows.
• The Exchange Orientation Scale exhibits test-retest coefficients of $r_{tt} = .73$ to $.81$ across comparable longitudinal timeframes.

Factor Analysis

Both Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) have been extensively conducted to clarify the latent dimensionality of the Communal and Exchange Orientation Scales.

Exploratory Factor Structure

Early principal component analyses and maximum likelihood factor analyses with varimax and oblimin rotations confirmed that communal items and exchange items load onto two distinct, orthogonal latent factors. When analyzed independently:

• Communal Factor: Clark et al. (1987) demonstrated that the 14 communal items load predominantly on a dominant general factor accounting for approximately 25% to 32% of total variance. While some exploratory studies have identified secondary sub-dimensions—distinguishing between giving help/support (e.g., Items 2, 5, 8) and expecting/seeking support (e.g., Items 1, 7, 11, 14)—the sub-factors are highly correlated ($r > .60$), supporting the retention of a parsimonious single-factor communal score.
• Exchange Factor: Factor extraction on the 9 exchange items consistently yields a dominant primary factor capturing transactional reciprocity and equity monitoring, with item factor loadings generally exceeding .40.

Confirmatory Factor Analysis (CFA) Fit Indices

Contemporary structural equation modeling studies utilizing CFA frameworks have tested competing models of the instrument:

CFA results emphatically reject a unidimensional continuum, demonstrating unacceptable fit for a single-factor solution. Accounting for the methodological variance introduced by the reverse-worded items yields superior fit indices ($CFI ge .95$, $RMSEA le .05$), fully corroborating the multidimensional construct integrity postulated by Clark and Mills.

Instrument / Measurement Tool

The operational administration of the Communal and Exchange Orientation Scales is straightforward and easily implemented across laboratory, online, and pen-and-paper assessment protocols:

• Construct Assessed: Individual dispositional orientation toward communal norms (caring, mutual responsiveness) versus exchange norms (reciprocity, immediate balancing of favors).
• Test Format: Self-report paper-and-pencil or computerized questionnaire.
• Total Item Count: 23 items total (14 items for the Communal Orientation Scale; 9 items for the Exchange Orientation Scale).
• Response Scale: 7-point Likert-type scale ranging from 1 (extremely uncharacteristic of me) to 7 (extremely characteristic of me).
• Scoring Instructions:
  • Communal Orientation Scale: Reverse-code items marked with an asterisk (*): Items 3, 4, 6, 9, 10, 12, and 13. Reverse scoring formula on a 1–7 scale is: $Score_{reversed} = 8 – Score_{raw}$. Sum or average all 14 items. Higher composite scores reflect a stronger communal orientation.
  • Exchange Orientation Scale: Reverse-code items marked with an asterisk (*): Items 2, 3, 4, 5, and 9. Sum or average all 9 items. Higher composite scores denote a stronger exchange orientation.
  • Subscale Independence: Do NOT combine communal and exchange scores into a single composite score. They must be calculated and interpreted as two separate subscale metrics.
• Target Population: Adults and adolescents aged 16 and above; suitable for relational, organizational, and general personality assessments.
• Administration Time: Approximately 5 to 8 minutes for the complete battery.

Permissions & Fee and Test Year

The original conceptualization of exchange versus communal relationships was formulated by Margaret S. Clark and Judson Mills in their classic 1979 publication in the Journal of Personality and Social Psychology, followed by the psychometric development and publication of the standardized Communal Orientation Scale in 1987 (Clark, Ouellette, Powell, & Milberg) and further theoretical consolidation (Clark & Mills, 2012).

Licensing and Accessibility: The scale items were published in academic literature and are in the public domain for academic research, instructional, and non-commercial scientific applications. Researchers may administer, adapt, and translate the scale without paying royalty fees, provided appropriate citation is given to Margaret S. Clark, Judson Mills, and the original publications. For commercial applications, diagnostic software integration, or organizational consulting batteries, standard institutional fair-use guidelines and academic attribution policies apply.

References

• Adams, J. S. (1965). Inequity in social exchange. In L. Berkowitz (Ed.), Advances in Experimental Social Psychology (Vol. 2, pp. 267–299). Academic Press. https://doi.org/10.1016/S0065-2601(08)60108-2
• Blau, P. M. (1964). Exchange and Power in Social Life. John Wiley & Sons.
• Clark, M. S., & Finkel, E. J. (2005). Willingness to express emotion: The impact of relationship type, communal orientation, and their interaction. Personal Relationships, 12(2), 169–180. https://doi.org/10.1111/j.1350-4126.2005.00109.x
• Clark, M. S., & Mills, J. (1979). Interpersonal attraction in exchange and communal relationships. Journal of Personality and Social Psychology, 37(1), 12–24. https://doi.org/10.1037/0022-3514.37.1.12
• Clark, M. S., & Mills, J. (1993). The difference between communal and exchange relationships: What it is and what it is not. Personality and Social Psychology Bulletin, 19(6), 684–691. https://doi.org/10.1177/0146167293196003
• Clark, M. S., & Mills, J. (2012). A theory of communal (and exchange) relationships. In P. A. M. Van Lange, A. W. Kruglanski, & E. T. Higgins (Eds.), Handbook of Theories of Social Psychology (Vol. 2, pp. 232–251). SAGE Publications. https://doi.org/10.4135/9781446249222.n38
• Clark, M. S., Ouellette, R., Powell, M., & Milberg, S. (1987). Recipient’s mood, relationship type, and helping. Journal of Personality and Social Psychology, 53(1), 94–103. https://doi.org/10.1037/0022-3514.53.1.94
• Mills, J., & Clark, M. S. (1982). Exchange and communal relationships. In L. Wheeler (Ed.), Review of Personality & Social Psychology (Vol. 3, pp. 121–144). SAGE Publications.
• Walster, E., Berscheid, E., & Walster, G. W. (1973). New directions in equity research. Journal of Personality and Social Psychology, 25(2), 151–176. https://doi.org/10.1037/h0033967

13. Items of the Scale (Questionnaire)