The Justice Scale

Abstract

The Justice Scale is a prominent multi-dimensional instrument developed by Brian P. Niehoff and Robert H. Moorman (1993), building upon earlier work by Moorman (1991). This scale is designed to assess employee perceptions of fairness within an organizational context, specifically focusing on how employees perceive outcomes and processes related to their jobs.

It measures three distinct dimensions of organizational justice: distributive justice, formal procedures (procedural justice), and interactional justice. The instrument uses a consistent seven-point response format across all 20 items and has demonstrated robust psychometric properties, including high internal consistency.

Keywords

Organizational justice, workplace fairness, distributive justice, procedural justice, interactional justice, employee perceptions, organizational citizenship behavior, Niehoff and Moorman, organizational psychology.

Authors

Brian P. Niehoff, Robert H. Moorman

[quads id=5]

Purpose

The primary purpose of The Justice Scale is to provide a comprehensive measure of an employee’s perceived fairness regarding organizational decisions and outcomes. It was specifically utilized in research designed to investigate how perceptions of justice mediate the relationship between management monitoring methods and subsequent employee behaviors, such as Organizational Citizenship Behavior (OCB).

By distinguishing between the three core facets of justice—outcomes (distributive), process consistency (formal procedures), and interpersonal treatment (interactional)—the scale allows researchers and practitioners to pinpoint specific areas where perceived unfairness may be impacting employee attitudes and performance within the organization.

Construct

The scale measures the construct of Organizational Justice, which is typically conceptualized as the extent to which employees perceive workplace decisions and processes to be fair. The structure adheres to the widely accepted trichotomy model, which includes:

• Distributive Justice: Refers to the perceived fairness of the outcomes or allocations employees receive (e.g., pay, workload, rewards).
• Formal Procedures (Procedural Justice): Concerns the perceived fairness of the processes used to determine outcomes, including consistency, bias suppression, accuracy, and correctability.
• Interactional Justice: Relates to the quality of interpersonal treatment employees receive when procedures are implemented or outcomes are delivered, encompassing respect, dignity, and truthfulness.

Validity

The structural validity of The Justice Scale was assessed through Confirmatory Factor Analysis (CFA). The reported fit indices support the hypothesized three-factor model, suggesting that the items load distinctly onto the three intended dimensions: Distributive Justice, Formal Procedures, and Interactional Justice.

The fit statistics reported in the original study indicate acceptable model fit for the standardized solution: X²(167) = 348.07 (p < .001). Furthermore, the Comparative Fit Index (CFI) was reported as .92. A CFI value of .90 or higher is generally considered evidence of good fit, thus providing support for the scale’s construct validity in measuring the distinct components of organizational justice.

Reliability

The internal consistency of The Justice Scale is reported to be exceptionally high. The study indicated that the reliabilities (likely Cronbach’s Alpha coefficients) were above .90 for all three dimensions (Distributive Justice, Formal Procedures, and Interactional Justice). This high level of reliability suggests that the items within each subscale are highly consistent and measure their respective underlying constructs accurately and dependably.

Factor Analysis

The factor analysis performed on the scale was a Confirmatory Factor Analysis (CFA) applied to the standardized solution. This methodology was used to confirm that the 20 items partitioned cleanly into the three theoretical dimensions derived from existing organizational justice literature. The analysis resulted in the following fit statistics:

• Chi-square: X²(167) = 348.07 (p < .001).
• Comparative Fit Index (CFI): .92.

These results confirm the three-factor structure of the scale, indicating that the concepts of distributive justice, procedural fairness (formal procedures), and interpersonal treatment (interactional justice) are empirically separable components within the measurement instrument.

Instrument

Test Type: Self-report questionnaire/Psychometric scale

Format: All items utilize a seven-point response format, characteristic of a Likert-type scale, typically ranging from a low agreement/fairness rating to a high agreement/fairness rating.

Language Available: English (Original Publication Language)

Population Group: Employed adults / Organizational staff

Age Group: Adults (Typically working age)

Population Details: The scale was developed and validated within an organizational setting, focusing on employees subject to managerial decisions and monitoring practices.

Test Methodology: The scale is administered to measure subjective perceptions of fairness regarding job-related outcomes and managerial actions.

Keywords

Organizational behavior, human resources, employee attitudes, job satisfaction, organizational commitment, psychometrics, justice perception, decision-making fairness.

[quads id=5]

Authors

Author ORCID Identifier: Not specified in source material.

Affiliation Email addresses: Not specified in source material.

Correspondence Address: Brian P. Niehoff (Kansas State University); Robert H. Moorman (West Virginia University).

Permissions & Fee and Test Year

Test Year: 1993 (Year of primary publication).

Permissions & Fee: The scale was published in an academic journal, suggesting it is typically available for non-commercial academic research use, subject to standard copyright permissions of the journal and authors. No specific fee information is provided in the source material.

Reference’s

• Niehoff, B. P., & Moorman, R. H. (1993). Justice as a mediator of the relationship between methods of monitoring and organizational citizenship behavior. Academy of Management Journal, 36(3), 527-556.
• Moorman, R. H. (1991). Relationship between organizational justice and organizational citizenship behaviors: Do fairness perceptions influence employee citizenship? Journal of Applied Psychology, 76(6), 845-855.

[quads id=5]

Items of the The Justice Scale

Distributive justice

1. My work schedule is fair
2. I think that my level of pay is fair.
3. I consider my work load to be quite fair.
4. Overall‚ the rewards I receive here are quite fair.
5. I feel that my job responsibilities are fair.

Formal procedures

6. Job decisions are made by the general manager in an unbiased manner.
7. My general manager makes sure that all employee concerns are heard before job decisions are made.
8. To make job decisions‚ my general manager collects accurate and complete information.
9. My general manager clarifies decisions and provides additional information when requested by employees.
10. All job decisions are applied consistently across all affected employees.
11. Employees are allowed to challenge or appeal job decisions made by the general manager.

Interactional justice

12. When decisions are made about my job‚ the general manager treats me with kindness and consideration.
13. When decisions are made about my job‚ the general manager treats me with respect and dignity.
14. When decisions are made about my job‚ the general manager is sensitive to my personal needs.
15. When decisions are made about my job‚ the general manager deals with in a truthful manner.
16. When decisions are made about my job‚ the general manager shows concern for my rights as an employee.
17. Concerning decisions made about my job‚ the general manager discusses the implications of the decisions with me.
18. The general manager offers adequate justification for decisions made about my job.
19. When making decisions about my job‚ the general manager offers explanations that make sense to me.
20. My general manager explains very clearly any decision made about my job.