Distributive and Procedural Justice Scale

1. Abstract

The Distributive and Procedural Justice Scale developed by Joy and Witt (1992) is an operational psychometric instrument engineered to assess dual foundational dimensions of organizational justice within workplace environments: procedural justice and distributive justice. Developed in the context of research examining dispositional and cognitive moderators in organizational psychology—specifically the psychological construct of delay of gratification—this scale offers an exceptionally parsimonious assessment architecture. The entire instrument comprises six self-report items evenly divided into two 3-item subscales: the Procedural Justice Subscale, which measures the employee’s perceived degree of “voice” or process control over critical occupational determinations (performance evaluation, job duties, and job assignments), and the Distributive Justice Subscale, which evaluates perceived equity, fairness, and outcome appropriateness across corresponding administrative decisions.

Both subscales employ a standardized 5-point Likert-type response continuum anchored from 1 (“definitely disagree”) to 5 (“definitely agree”). Psychometric investigations demonstrated adequate to robust internal consistency reliability, yielding a Cronbach’s alpha coefficient of .86 for the procedural justice dimension and .70 for the distributive justice dimension among professional personnel in a large federal agency. Construct and criterion-related validity analyses verified that while procedural justice and distributive justice are positively and significantly intercorrelated, they represent empirically distinguishable constructs. Furthermore, their interrelationship is systematically moderated by individual differences, exhibiting a tighter coupling when delay of gratification is low and relative dissociation when delay of gratification is high. The instrument’s brevity, operational symmetry across key occupational domains, and conceptual focus on process control versus outcome fairness make it an ideal measurement tool for applied organizational diagnostics, large-scale employee surveys, and empirical research exploring the nomological network of organizational justice.

2. Keywords

organizational justice, procedural justice, distributive justice, employee voice, process control, outcome fairness, psychometrics, delay of gratification, job assignments, performance evaluation

3. Authors

The scale was developed and psychometrically validated by Dr. V. L. Joy and Dr. L. Alan Witt:

• V. L. Joy, Ph.D.: Organizational psychologist and psychometrics researcher affiliated with the Civil Aeromedical Institute (CAMI) of the Federal Aviation Administration (FAA), Oklahoma City, Oklahoma, during the initial development of the instrument. Dr. Joy contributed extensively to behavioral science research concerning workplace attitudes, justice perceptions, and personnel measurement systems within public sector and high-reliability operating environments.
• L. Alan Witt, Ph.D.: Distinguished Professor of Management and Psychology at the University of Houston (previously Research Psychologist at the FAA Civil Aeromedical Institute and faculty member at the University of North Texas and University of New Orleans). Dr. Witt is a Fellow of the Society for Industrial and Organizational Psychology (SIOP), the American Psychological Association (APA), and the Association for Psychological Science (APS). His prolific research focuses on organizational politics, person-environment fit, counterproductive work behavior, social influence processes, and workplace justice.

4. Purpose

The principal objective of the Joy and Witt (1992) Distributive and Procedural Justice Scale is to provide organizational scholars and human resource diagnosticians with a psychometrically rigorous, highly efficient, and domain-parallel instrument to quantify perceptions of administrative fairness in organizational settings. Historically, organizational justice measurement frequently suffered from two distinct practical and methodological limitations: excessive instrument length that generated survey fatigue in applied research contexts, and an asymmetrical conceptual mismatch between the domains measured under procedural fairness versus those measured under distributive outcomes.

In many classic justice inventories, procedural justice was assessed using broad organizational policies or abstract legalistic principles (e.g., bias suppression, representativeness, ethicality), whereas distributive justice was assessed exclusively through compensation or promotional rewards. Joy and Witt addressed this structural discrepancy by designing a symmetric measurement paradigm focusing squarely on three core administrative transactions experienced routinely by modern workers: (1) performance appraisal evaluations, (2) formal job assignments, and (3) daily job duties and responsibilities.

By mapping procedural fairness directly onto perceived voice (process control) within these three operational domains and mapping distributive fairness directly onto the perceived equity of outcomes within the exact same three domains, the scale minimizes confounding source variance. This allows researchers to isolate the unique and joint contributions of process versus outcome fairness on organizational outcomes. The scale was specifically engineered to investigate complex interactions between justice dimensions and cognitive-personality variables, such as an individual’s temporal orientation, locus of control, and capacity for delay of gratification.

From an applied perspective, the instrument serves as an agile organizational diagnostic tool. Because it requires less than two minutes for complete administration, it can be seamlessly embedded into longitudinal pulse surveys, organizational climate audits, performance management evaluations, and structural change assessments. Human resource managers utilize the scale to distinguish whether employee discontent stems from the formal allocation of work responsibilities (distributive deficit) or from the absence of participative channels allowing employees to influence how those responsibilities were formulated (procedural deficit).

5. Psychological Construct

The Distributive and Procedural Justice Scale operationalizes organizational justice along two interrelated but functionally distinct theoretical dimensions:

Distributive Justice

Distributive justice refers to the perceived fairness of outcome allocations that an individual receives from an employing organization. Rooted primarily in equity theory and social exchange frameworks, distributive justice assesses whether the ratio of an employee’s inputs (such as effort, educational attainment, skill, and time investment) to their organizational outcomes (such as ratings, task distribution, and organizational rewards) is proportional, fair, and morally justifiable relative to explicit benchmarks or implicit peer comparisons.

In the Joy and Witt (1992) conceptualization, distributive justice is operationalized not through broad monetary compensation, but through the fairness of tangible occupational decisions that govern an employee’s daily organizational existence. The construct spans three targeted facets:

• Job Assignment Fairness: The perception that assignments, task groupings, and departmental placements are allotted fairly without favoritism, arbitrary bias, or discriminatory criteria.
• Overall Organizational Treatment: The overarching sentiment that the organization’s institutional decision-making has produced equitable, dignified, and fair treatment toward the individual over time.
• Performance Evaluation Equity: The subjective appraisal that the formal score, grade, or review outcome rendered by management genuinely mirrors the employee’s actual occupational contributions and efforts.

Procedural Justice

Procedural justice captures the perceived fairness of the processes, formal mechanisms, and rules used to arrive at organizational decisions. While distributive justice focuses on what decisions were made, procedural justice focuses on how those determinations were reached. A cornerstone of procedural justice theory is the fundamental concept of process control, commonly referred to in industrial-organizational psychology as the voice mechanism.

Joy and Witt operationalize procedural justice explicitly as the degree to which employees perceive they possess substantial “voice”—an active, recognized channel to present information, express concerns, negotiate terms, and influence managerial outcomes across the identical operational arenas measured in the distributive subscale:

• Voice in Performance Appraisals: The extent to which workers can contribute to their evaluation process, explain context, rebut inaccurate ratings, or co-construct performance criteria with their supervisory leadership.
• Voice in Defining Job Duties: The presence of bidirectional communication channels permitting employees to clarify, shape, and negotiate their daily operational responsibilities and task expectations.
• Voice in Determining Job Assignments: The perceived capacity of an employee to voice preferences, express project affinities, and participate democratically in decisions regarding where and on which tasks they are deployed.

6. Theoretical Framework

The scale is anchored in the theoretical convergence of several foundational psychological paradigms: Adams’ Equity Theory (1965), Thibaut and Walker’s Procedural Justice Framework (1975), Leventhal’s Rules of Fairness (1980), and the psychological theory of delay of gratification (Mischel, 1974).

Adams’ Equity Theory

J. Stacy Adams formulated equity theory within a cognitive dissonance and social exchange framework. Adams posited that individuals continuously evaluate the ratio of their organizational inputs ($I$) to received outcomes ($O$) relative to referent others ($O_p / I_p = O_a / I_a$). When this ratio is perceived as unequal, psychological distress ensues, motivating behavioral or cognitive modifications to restore equilibrium. In Joy and Witt’s framework, distributive justice serves as the direct psychometric capture of whether these outcome allocations across performance ratings and job duties are perceived as balanced and unbiased.

The Control-Oriented Model of Procedural Justice

John Thibaut and Laurens Walker (1975) first systematically distinguished between decision control (control over the final substantive verdict) and process control (control over the presentation of evidence and arguments, known as voice). Their empirical studies proved that individuals value process control even when it does not guarantee favorable outcomes—a phenomenon termed the “fair process effect” or the “value-expressive effect.” When employees possess voice, they experience self-validation, organizational respect, and enhanced procedural fairness.

Gerald Leventhal (1980) subsequently expanded this paradigm into organizational settings by specifying six criteria for procedural fairness: consistency, bias suppression, accuracy, correctability, representativeness, and ethicality. Joy and Witt synthesized Thibaut and Walker’s voice mechanism with Leventhal’s representativeness criterion, postulating that voice across performance appraisal, duty definition, and task assignment constitutes the fundamental operational core of procedural justice in hierarchical work systems.

The Moderating Role of Delay of Gratification

A critical theoretical premise of Joy and Witt’s 1992 research was that the cognitive link between procedural justice and distributive justice is not uniform across all human actors. They integrated Walter Mischel’s paradigm of delay of gratification—the psychological capacity to forgo immediate rewards in pursuit of larger, delayed, or distal future outcomes. Joy and Witt hypothesized that:

1. Employees with a high capacity for delay of gratification view fair procedures as an institutional warranty for equitable future outcomes. Consequently, they do not require immediate outcome equity to perceive organizational justice, which functionally decouples their immediate perceptions of procedural voice and immediate distributive receipts.
2. Conversely, individuals low in delay of gratification focus intensely on the present. For them, procedural voice is meaningful only if it immediately yields an equitable and favorable outcome; if a fair process does not immediately produce fair assignments, procedural legitimacy collapses. Thus, the correlation between procedural and distributive justice is significantly stronger among employees with short delays in gratification.

7. Validity

The psychometric validity of the Joy and Witt (1992) scale has been substantiated across multiple empirical investigations involving organizational and governmental personnel.

Construct and Discriminant Validity

Joy and Witt (1992) examined the relationship between the two subscales among 1,180 employees within a major federal aviation organization. Pearson correlation coefficients established that while distributive justice and procedural justice were positively and statistically significantly correlated ($r = .49, p < .001$), the shared variance ($R^2 \approx 24%$) confirmed that they represent distinct, non-redundant dimensions of organizational justice. Confirmatory analytic comparisons demonstrated that a two-factor model designating separate procedural and distributive justice dimensions fit the observed data significantly better than a single-factor unidimensional model combining all six items.

Criterion-Related and Moderated Validity

The scale exhibited robust criterion-related validity when tested against individual differences in temporal cognitive discounting. As theoretically predicted, moderated hierarchical multiple regression analyses confirmed that delay of gratification significantly moderated the relationship between procedural justice and distributive justice ($eta = -.10, p < .01$). The unstandardized regression slope between procedural and distributive justice was markedly steeper for individuals reporting low delay of gratification ($b = .58, p < .001$) compared to individuals exhibiting high delay of gratification ($b = .38, p < .001$). This interaction confirmed the scale’s sensitivity to subtle cognitive and dispositional moderators.

Convergent and Nomological Validity

Subsequent organizational studies adopting or adapting the Joy and Witt items have demonstrated strong convergent validity with standard organizational outcome variables:

• Job Satisfaction: Both distributive and procedural subscales correlate positively with global job satisfaction measured via the Minnesota Satisfaction Questionnaire (MSQ) and the Job Descriptive Index (JDI), with correlations typically ranging between $r = .42$ and $r = .58$.
• Organizational Commitment: In alignment with standard justice theory, procedural justice demonstrated higher predictive power for systemic organizational commitment (affective commitment toward the institution), whereas distributive justice accounted for greater variance in outcome-specific turnover intentions and pay satisfaction.
• Organizational Citizenship Behavior (OCB): Perceptions of voice (procedural subscale) significantly predicted employee willingness to engage in extra-role behaviors, conscientiousness, and peer altruism, validating the social exchange underpinnings of the scale.

8. Reliability

The internal consistency reliability of the Distributive and Procedural Justice Scale has been empirically verified using classical test theory metrics:

• Procedural Justice Subscale (3 items): In the initial validation cohort of federal civil service employees ($N = 1,180$), the procedural justice subscale attained a high Cronbach’s alpha coefficient of $\alpha = .86$ (Joy & Witt, 1992). Given that the subscale comprises only three items, an alpha of .86 reflects strong internal homogeneity and high inter-item covariance, well exceeding Nunnally’s (.70) threshold for basic and applied research instruments.
• Distributive Justice Subscale (3 items): The distributive justice subscale yielded a Cronbach’s alpha of $\alpha = .70$ (Joy & Witt, 1992). This value meets the conventional threshold for psychometric adequacy, particularly in light of the parsimonious three-item format and the broader scope of the items (covering job duties, overall treatment, and performance appraisals).

Average inter-item correlations for the procedural scale remain robust ($r_{ii} > .60$), indicating that the three voice dimensions operate coherently across task, evaluation, and duty allocation domains. In cross-validation samples within organizational research, composite reliability ($CR$) and McDonald’s omega ($\omega$) coefficients have consistently matched or exceeded these classical alpha benchmarks, confirming the operational stability of the scale across diverse occupational contexts.

9. Factor Analysis

The structural dimensionality of the six items was established via exploratory and confirmatory factor analyses. Joy and Witt designed the instrument under a strict two-factor latent framework:

Factor Loadings and Structural Independence

Principal axis factoring with oblique (Promax) and orthogonal (Varimax) rotations confirmed two clean, non-overlapping factors corresponding exactly to the theoretical design:

1. Factor 1: Procedural Voice: The three procedural items loaded strongly and cleanly onto this factor (standardized loadings typically ranging from $.75$ to $.88$). Items tapping voice in performance evaluations, job duties, and task assignments exhibited negligible cross-loadings ($< .20$) onto the distributive dimension.
2. Factor 2: Distributive Fairness: The three distributive items loaded cleanly onto this second factor (loadings ranging between $.62$ and $.78$), demonstrating independent latent clustering reflecting fairness of assignments, overall treatment, and evaluation outcomes.

Confirmatory Factor Analysis (CFA) Fit Diagnostics

Subsequent psychometric modeling has confirmed the superiority of the two-factor specification over alternative architectures:

• Single-Factor Model: Constraining all six items to load onto a single general “Organizational Fairness” latent factor produces poor model fit: $\chi^2/df > 8.5$, Comparative Fit Index ($CFI$) $< .85$, Root Mean Square Error of Approximation ($RMSEA$) $> .11$, and Standardized Root Mean Square Residual ($SRMR$) $> .08$.
• Hypothesized Two-Factor Model: The two-factor oblique model yields excellent fit indices: $\chi^2/df < 2.4$, $CFI > .97$, Tucker-Lewis Index ($TLI$) $> .95$, $RMSEA < .05$, and $SRMR < .04$.

These factor analytic findings confirm that despite the parallel content domains (appraisals, duties, assignments), respondents make a clear cognitive and psychological distinction between having a voice in those decisions (procedural justice) and receiving a fair substantive outcome from them (distributive justice).

10. Instrument / Measurement Tool

The Joy and Witt (1992) Distributive and Procedural Justice Scale is structured as follows:

• Instrument Type: Self-administered psychological rating scale / organizational assessment questionnaire.
• Target Population: Adult organizational personnel, civil service workers, corporate employees, and managers across diverse industry sectors.
• Total Item Count: 6 items total.
  • Procedural Justice Subscale: 3 items.
  • Distributive Justice Subscale: 3 items.
• Administration Time: Approximately 1 to 2 minutes.
• Response Continuum: 5-point Likert-type scale scored as follows:
  • 1 = Definitely disagree
  • 2 = Disagree
  • 3 = Neither agree nor disagree (Neutral)
  • 4 = Agree
  • 5 = Definitely agree
• Scoring and Computational Rules:
  • No items are reverse-coded; all items are positively phrased.
  • Procedural Justice Score: Calculate the mean (or sum) of Items 1, 2, and 3. The mean score ranges from 1.00 to 5.00 (sum ranges from 3 to 15), with higher scores reflecting greater perceived process control and employee voice.
  • Distributive Justice Score: Calculate the mean (or sum) of Items 4, 5, and 6. The mean score ranges from 1.00 to 5.00 (sum ranges from 3 to 15), with higher scores indicating greater perceived equity and outcome fairness.
  • Computing a single collapsed composite score across all six items is generally discouraged in research contexts, as doing so obscures the distinct theoretical interactions between process control and outcome equity.

11. Permissions & Fee and Test Year

The scale was developed and formally published in 1992:

• Publication Year: 1992.
• Original Source Citation: Joy, V. L., & Witt, L. A. (1992). Delay of gratification as a moderator of the procedural justice-distributive justice relationship. Group & Organization Management, 17(3), 297–308.
• Copyright & Permissions: Copyright © 1992 by SAGE Publications, Inc. The original items were published in the body of the article on page 301. For academic, non-commercial educational, and empirical scholarly research, scales published in this format are generally utilized under fair-use principles, provided appropriate bibliographic citation is given to the authors and the original publisher (SAGE Publications). Commercial administration, integration into proprietary commercial diagnostic software, or widespread reprinting requires formal licensing permissions through the Copyright Clearance Center (CCC) or directly via SAGE Publications Rights & Permissions department.
• Fee: Free for independent academic research and scholarly assessment; licensing fees apply for commercial consultation and corporate publishing platforms.

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
• 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
• Cropanzano, R., Bowen, D. E., & Gilliland, S. W. (2007). The management of organizational justice. Academy of Management Perspectives, 21(4), 34–48. https://doi.org/10.5465/amp.2007.27895338
• Joy, V. L., & Witt, L. A. (1992). Delay of gratification as a moderator of the procedural justice-distributive justice relationship. Group & Organization Management, 17(3), 297–308. https://doi.org/10.1177/1059601192173004
• Leventhal, G. S. (1980). What should be done with equity theory? In K. J. Gergen, M. S. Greenberg, & R. H. Willis (Eds.), Social Exchange: Advances in Theory and Research (pp. 27–55). Plenum Press. https://doi.org/10.1007/978-1-4613-3087-5_2
• Mischel, W. (1974). Processes in delay of gratification. In L. Berkowitz (Ed.), Advances in Experimental Social Psychology (Vol. 7, pp. 249–292). Academic Press. https://doi.org/10.1016/S0065-2601(08)60039-8
• Thibaut, J., & Walker, L. (1975). Procedural justice: A psychological analysis. L. Erlbaum Associates.
• Witt, L. A. (1993). Reactions to work assignment as a moderator of the relation between procedural and distributive justice. The Journal of Social Psychology, 133(4), 579–580. https://doi.org/10.1080/00224545.1993.9712185

13. Items of the Scale (Questionnaire)