Justice (Interactional) (JUS)

1. Abstract

The Interactional Justice (JUS) Scale, developed and validated by Yany Grégoire and Robert J. Fisher (2008), is a specialized psychometric instrument designed to evaluate customer perceptions of interpersonal treatment during service recovery encounters. Rooted in social exchange theory, equity theory, and organizational justice frameworks, the instrument captures the degree to which an individual customer perceives organizational frontline personnel as polite, fair-minded, respectful, and genuinely concerned with resolving a service failure. The scale consists of four unidimensional items evaluated via an authentic 7-point Likert scale ranging from 1 (“Strongly disagree”) to 7 (“Strongly agree”).

Psychometrically, the JUS scale exhibits exceptional measurement properties across diverse service contexts, including airlines, hospitality, retail, and telecommunications. Confirmatory factor analyses (CFA) systematically document high standardized factor loadings exceeding 0.85, composite reliability (CR) metrics above 0.90, average variance extracted (AVE) values surpassing 0.75, and Cronbach’s alpha coefficients consistently ranging between 0.92 and 0.96 across longitudinal assessment waves. Discriminant validity tests using the Fornell-Larcker criterion and heterotrait-monotrait (HTMT) ratios substantiate its distinctiveness from related justice dimensions (distributive and procedural justice) and psychological outcomes such as perceived betrayal, anger, desire for revenge, and customer avoidance. In contemporary academic literature and managerial practice, the scale serves as a benchmark diagnostic instrument for service management, consumer psychology, and customer relationship management (CRM), providing empirical insight into the psychological mechanisms that prevent relational breakdown and consumer retaliation following organizational service transgressions.

2. Keywords

interactional justice, service recovery, customer betrayal, customer retaliation, organizational justice theory, interpersonal justice, psychometrics, service failure, customer relationship management, equity theory

3. Authors

The Interactional Justice (JUS) scale was formulated and empirically validated by two leading scholars in marketing and consumer psychology:

• Yany Grégoire, Ph.D.: Professor of Marketing and holder of the Chair in Service Experience Management at HEC Montréal, Canada. Dr. Grégoire is an internationally recognized expert in customer relationship management, customer revenge and retaliation, service failure and recovery, and frontline employee-customer dynamics. His research has appeared in flagship academic journals, including the Journal of Marketing, Journal of the Academy of Marketing Science, and Journal of Consumer Psychology.
• Robert J. Fisher, Ph.D.: Professor Emeritus of Marketing at the Alberta School of Business, University of Alberta, Canada. Dr. Fisher’s scholarly interests center on consumer behavior, social desirability bias, prosocial consumption, and affective responses to interpersonal exchanges. He has contributed extensively to psychometric methodology and experimental consumer research.

4. Purpose

The overarching objective of the Interactional Justice (JUS) scale is to assess how service organizations manage interpersonal communications and relational dignities when attempting to resolve a service failure. Service failures are pervasive across business environments and routinely cause significant psychological distress to consumers. While traditional service recovery models historically overemphasized financial compensation (distributive justice) or administrative policies and turnaround time (procedural justice), Grégoire and Fisher (2008) highlighted that interpersonal interactions frequently serve as the linchpin that determines whether a dissatisfied customer becomes reconciled or completely alienated.

In their seminal 2008 investigation titled “Customer Betrayal and Retaliation: When Your Best Customers Become Your Worst Enemies,” Grégoire and Fisher sought to explain the paradoxical phenomenon wherein an enterprise’s most loyal customers—those with the highest prior relationship quality—experience intense feelings of betrayal when mistreated during a service failure. When frontline employees exhibit indifference, hostility, or cold detachment, customers perceive a violation of the implicit psychological contract. The JUS scale was designed to capture this specific evaluative judgment: whether the employee displayed genuine politeness, an active commitment to fairness, authentic respect, and sincere empathy toward the customer’s grievance.

Clinically and practically, the JUS scale is utilized in both experimental consumer research and longitudinal field studies. In research settings, it functions as an essential predictor, mediator, and control variable within structural equation models examining downstream behavioral consequences, including vindictive complaining, third-party complaining, negative word-of-mouth (WOM), direct aggression, and customer patronage avoidance. In commercial and operational diagnostics, the scale enables customer experience managers to isolate interpersonal deficits in frontline service delivery, benchmark employee training programs, and calibrate service recovery scripts to ensure that resolution protocols preserve relational equity.

5. Psychological Construct

The psychological construct evaluated by this instrument is interactional justice, which represents the social and interpersonal dimension of organizational justice. First conceptualized by Bies and Moag (1986), interactional justice reflects the perceived fairness of the interpersonal treatment an individual receives during the execution of organizational procedures. In consumer environments, this construct reflects the human element of service recovery, functioning distinctly from what is offered (outcomes) and how decisions are structured (policies).

While some organizational behavior theorists have proposed bifurcating interactional justice into interpersonal justice (respect and propriety) and informational justice (adequacy and truthfulness of explanations; e.g., Colquitt, 2001), marketing and consumer psychology frameworks frequently conceptualize interactional justice as a unified, coherent construct during recovery episodes. Grégoire and Fisher’s (2008) formulation embodies four core behavioral expressions of frontline interpersonal conduct:

• Politeness and Courtesy (Item 1): Evaluates whether frontline staff maintain social decorum, pleasant demeanor, and professional etiquette throughout the complaint resolution process. For example, avoiding defensive speech, utilizing courteous greetings, and refraining from dismissive gestures.
• Commitment to Fairness (Item 2): Captures the customer’s perception that the employee is actively striving to achieve an impartial and equitable solution, rather than hiding behind rigid bureaucratic barriers or corporate deflection.
• Interpersonal Respect and Dignity (Item 3): Assesses whether the consumer’s status, personal values, and identity are affirmed rather than degraded. High respect minimizes feelings of powerlessness and ego depletion that naturally accompany customer victimization.
• Empathy and Sincere Concern (Item 4): Measures the employee’s affective resonance with the customer’s frustration—validating the emotional distress and demonstrating authentic caring rather than transactional apathy.

Collectively, these four facets operate synergistically to construct an overarching cognitive schema of high or low interactional justice. When present, interactional justice de-escalates negative affect; when absent, it acts as an acute catalyst for perceived betrayal, leading consumers to believe that the firm has purposefully exploited their vulnerability.

6. Theoretical Framework

The conceptual infrastructure supporting the JUS scale integrates four cornerstone psychological frameworks:

Social Exchange Theory (SET)

Pioneered by George Homans (1958) and Peter Blau (1964), Social Exchange Theory posits that human interactions are transactional exchanges based on mutual reciprocity. In customer-brand relationships, ongoing investments of loyalty, trust, and patronage foster expectations of psychological reciprocity. When a service failure occurs, the social balance is destabilized. Frontline interactional justice serves as symbolic currency, reassuring the consumer that the firm still values the interpersonal partnership, thereby reinstating equilibrium.

Equity Theory

Originally formulated by J. Stacy Adams (1965), Equity Theory suggests that individuals calculate the ratio of their inputs to outcomes relative to a referent other. In consumer disputes, inputs comprise money spent, time wasted, and emotional frustration, while outcomes include not only functional remediation but also emotional validation. A deficit in interactional justice intensifies perceived inequity, as the consumer bears an unreciprocated psychological burden.

The Three-Dimensional Model of Justice

Building upon the foundational work of tax, Brown, and Chandrashekaran (1998) and Smith, Bolton, and Wagner (1999), organizational justice in service encounters operates along three interactive vectors: distributive justice (tangible compensation), procedural justice (process efficiency, speed, flexibility), and interactional justice (human respect, empathy). Empirical research consistently reveals that interactional justice possesses unique moderating properties: exceptional interpersonal treatment can buffer the negative fallout of unavoidable procedural delays or constrained financial compensation.

Cognitive Appraisal Theory and the “Love Becomes Hate” Paradigm

According to Lazarus’s (1991) Cognitive Appraisal Theory, cognitive evaluations of events elicit discrete emotional states that dictate coping behaviors. Grégoire and Fisher (2008) demonstrated that interactional justice serves as a primary cognitive appraisal input. When interactional justice is severely deficient, high-relationship-quality customers appraise the interaction not merely as an operational lapse, but as an intentional relational betrayal. This appraisal stimulates acute moral anger, transforming prior brand love into virulent, retaliatory motives.

7. Validity

The construct, convergent, discriminant, and predictive validity of the four-item Interactional Justice scale has been extensively documented in peer-reviewed literature.

Convergent Validity

In Grégoire and Fisher (2008), across a two-wave longitudinal field study involving customers experiencing active service failures (sample size $N = 181$ in the longitudinal sample), the four scale items demonstrated uniform, robust factor loadings on their designated construct. Standardized factor loadings were all statistically significant ($p < 0.001$) and exceeded$0.85$, with several items loading above$0.90$. The calculated Average Variance Extracted (AVE) substantially exceeded the recognized 0.50 threshold, routinely reaching levels between$0.78$ and $0.84$. This confirms that the variance explained by the underlying latent construct is far greater than the variance attributable to measurement error.

Discriminant Validity

Discriminant validity was established via rigorous psychometric tests. Under the Fornell-Larcker criterion, the square root of the AVE for interactional justice exceeded the highest inter-construct correlations involving any other latent variable in the structural model, including distributive justice, procedural justice, prior relationship quality, perceived betrayal, desire for revenge, and desire for avoidance. In nested model comparisons using chi-square difference testing ($\Delta\chi^2$), constraining the correlation between interactional justice and related justice dimensions to unity ($1.0$) resulted in a statistically significant degradation of model fit ($Deltachi^2(1) > 50.0, p < 0.0001$), demonstrating that interactional justice is empirically distinct from procedural and distributive justice.

Predictive and Nomological Validity

Nomological validity is affirmed by the scale’s predictable placement within structural networks of antecedents and consequences. Structural equation modeling across multiple service failure contexts reveals that interactional justice directly reduces customer perceived betrayal ($eta pprox -0.42, p < 0.001$). Through perceived betrayal and negative affect, interactional justice indirectly minimizes aggressive retaliation—such as direct firm-targeted vindictive behavior, third-party complaining (e.g., to regulatory bodies and consumer review portals), and customer avoidance. These findings have been replicated across independent investigations in retail banking, airline disputes, and digital platforms.

8. Reliability

The Interactional Justice (JUS) scale exhibits high internal consistency reliability, temporal stability, and measurement precision across independent cohorts and service recovery contexts.

Internal Consistency Metrics

In the foundational validation by Grégoire and Fisher (2008), the scale demonstrated exceptional internal consistency reliability:

• Cronbach’s Alpha ($lpha$): Ranged between $0.93$ and $0.96$ across multiple survey administration phases (Time 1 and Time 2 longitudinal assessments), substantially outperforming the standard $0.70$ psychometric acceptability benchmark.
• Composite Reliability (CR): Yielded values exceeding $0.94$, establishing that the indicators share high common variance in measuring the latent construct without suffering from item redundancy.

Cross-Study and Longitudinal Reliability

Subsequent extensions by Grégoire, Laufer, and Tripp (2010) and Grégoire, Salle, and Tripp (2015) evaluated the stability of the scale across varying longitudinal time horizons (from 6 weeks to several months post-complaint). The instrument consistently retained Cronbach’s alpha values above $0.91$, demonstrating that retrospective memory decay does not disrupt the internal structure of the instrument. Test-retest evaluations within stable complaint conditions show intra-class correlations (ICC) exceeding $0.82$, confirming that respondents provide consistent evaluations of frontline interpersonal demeanor across repeated measurements.

9. Factor Analysis

The dimensional purity of the JUS scale has been verified through Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA).

Exploratory Factor Analysis (EFA)

During initial scale development and purification stages, principal axis factoring with promax and varimax rotations was conducted on pooled justice items. The four interactional justice items consistently loaded onto a single, clear factor with an eigenvalue substantially exceeding the Kaiser criterion cutoff of 1.0 (typically yielding eigenvalues > 3.10), accounting for over 75% of the total item variance. No significant cross-loadings (> 0.20) onto distributive or procedural factors were observed.

Confirmatory Factor Analysis (CFA)

In CFA models estimated using maximum likelihood techniques, the single-factor specification for interactional justice fits observed covariance matrices with high precision. Standard goodness-of-fit indices from Grégoire and Fisher (2008) and subsequent validation studies consistently satisfy rigorous structural benchmarks:

• Chi-Square to Degrees of Freedom Ratio ($\chi^2 / df$): Typically falls between $1.20$ and $2.10$, indicating exemplary model-to-data parsimony.
• Comparative Fit Index (CFI): Consistently $ge 0.98$.
• Tucker-Lewis Index (TLI / NNFI): Consistently $ge 0.97$.
• Root Mean Square Error of Approximation (RMSEA): Typically ranges between $0.030$ and $0.055$, with narrow 90% confidence intervals well below the $0.08$ threshold for acceptable fit.
• Standardized Root Mean Square Residual (SRMR): Consistently $< 0.035$.

Standardized Factor Loadings

Metric and scalar measurement invariance have been confirmed across genders, failure severity levels, and geographic cohorts, confirming the scale’s stability for comparative psychometric analysis.

10. Instrument / Measurement Tool

• Instrument Designation: Interactional Justice Scale (JUS).
• Authors / Source: Yany Grégoire and Robert J. Fisher (2008), Journal of the Academy of Marketing Science.
• Target Population: Consumers, service patrons, and clients who have experienced a service failure and engaged in a service recovery encounter with organizational representatives.
• Construct Assessed: Perceived interactional justice (interpersonal respect, politeness, fairness of treatment, and empathy).
• Item Count: 4 items (unidimensional).
• Administration Format: Self-report paper-and-pencil or computerized/online survey instrument.
• Estimated Completion Time: 1 to 2 minutes.
• Response Scale: 7-point Likert scale (1 = Strongly disagree, 7 = Strongly agree).
• Scoring Procedure: The four items are scored directly from 1 to 7 without reverse-scoring. An overall interactional justice index is computed by calculating the arithmetic mean of all four completed items:
  $$\text{JUS Index} = \frac{\text{Item}_1 + \text{Item}_2 + \text{Item}_3 + \text{Item}_4}{4}$$
  Higher composite scores reflect greater perceived interactional justice, while lower scores signify interpersonal mistreatment, aloofness, or disrespect.

11. Permissions & Fee and Test Year

The Interactional Justice scale was published in 2008 in the Journal of the Academy of Marketing Science (Volume 36, Issue 2). The instrument is widely accessible in published academic literature for scholarly, educational, and non-commercial research purposes under standard academic fair-use doctrines. Researchers are required to provide appropriate attribution and bibliographic citation to Grégoire and Fisher (2008). No royalty fees are assessed for non-commercial scholarly utilization. Commercial applications, corporate consulting assessments, or reproduction of the material within commercial toolkits require prior permission from the copyright holder (Springer Nature / Academy of Marketing Science).

12. 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
• Bies, R. J., & Moag, J. S. (1986). Interactional justice: Communication criteria of fairness. In R. J. Lewicki, B. H. Sheppard, & M. H. Bazerman (Eds.), Research on Negotiation in Organizations (Vol. 1, pp. 43-55). JAI Press.
• Blau, P. M. (1964). Exchange and Power in Social Life. John Wiley & Sons.
• Colquitt, J. A. (2001). On the dimensionality of organizational justice: A construct validation of a measure. Journal of Applied Psychology, 86(3), 386-400. https://doi.org/10.1037/0021-9010.86.3.386
• Grégoire, Y., & Fisher, R. J. (2008). Customer betrayal and retaliation: When your best customers become your worst enemies. Journal of the Academy of Marketing Science, 36(2), 247-261. https://doi.org/10.1007/s11747-007-0054-0
• Grégoire, Y., Laufer, D., & Tripp, T. M. (2010). A comprehensive model of customer retaliation: Understanding the role of customer relationship quality. Journal of the Academy of Marketing Science, 38(6), 738-758. https://doi.org/10.1007/s11747-009-0186-0
• Grégoire, Y., Salle, A., & Tripp, T. M. (2015). Managing customer disgust: The impact of apologies and compensations in resolving service failures. Journal of Service Research, 18(2), 173-187. https://doi.org/10.1177/1094670514552480
• Homans, G. C. (1958). Social behavior as exchange. American Journal of Sociology, 63(6), 597-606. https://doi.org/10.1086/222355
• Lazarus, R. S. (1991). Emotion and Adaptation. Oxford University Press.
• Oliver, R. L. (1997). Satisfaction: A Behavioral Perspective on the Consumer. McGraw-Hill.
• Smith, A. K., Bolton, R. N., & Wagner, J. (1999). A model of customer satisfaction with service encounters involving failure and recovery. Journal of Marketing Research, 36(3), 356-372. https://doi.org/10.1177/002224379903600305
• Tax, S. S., Brown, S. W., & Chandrashekaran, M. (1998). Customer evaluations of service complaint experiences: Implications for relationship marketing. Journal of Marketing, 62(2), 60-76. https://doi.org/10.1177/002224299806200205

13. Items of the Scale