Modified Work Locus of Control Scale

Abstract

The Modified Work Locus of Control Scale (MWLOCS) is an occupational psychometric instrument designed to measure an individual’s generalized control beliefs regarding outcomes within the organizational environment. Derived from the theoretical foundations of Julian B. Rotter’s social learning theory and expanding upon Paul E. Spector’s seminal Work Locus of Control Scale (WLCS), the MWLOCS was adapted by Gireesh V. Gupchup and Alan P. Wolfgang (1997) to evaluate domain-specific control beliefs in professional environments. Comprising 20 self-report items evaluated on a 5-point Likert scale ranging from 1 (strongly disagree) to 5 (strongly agree), the instrument evaluates two distinct yet intercorrelated dimensions: Internal Work Locus of Control (the belief that personal effort, initiative, and competence determine workplace success) and External Work Locus of Control (the belief that organizational outcomes are governed by chance, luck, systemic fate, or powerful others such as supervisors and institutional authorities). Psychometric evaluations demonstrate sound internal consistency, with Cronbach’s alpha coefficients typically ranging from .80 to .85 across organizational and healthcare samples. Confirmatory factor analyses support both a bidimensional structure and a higher-order overarching construct of work locus of control. The MWLOCS demonstrates robust construct, convergent, and criterion-related validity, exhibiting statistically significant associations with workplace stress, occupational burnout, job performance, affective commitment, and career turnover intentions. This paper provides a comprehensive psychometric review of the MWLOCS, detailing its theoretical foundation, administrative and scoring protocols, structural validity, and empirical utility within industrial-organizational psychology and occupational health research.

Keywords

Modified Work Locus of Control Scale, MWLOCS, Work Locus of Control, Internal Locus of Control, External Locus of Control, Organizational Behavior, Psychometrics, Industrial-Organizational Psychology, Occupational Stress, Job Performance

Authors

The Modified Work Locus of Control Scale was developed and validated by Gireesh V. Gupchup, Ph.D., FAPhA, and Alan P. Wolfgang, Ph.D.

• Gireesh V. Gupchup, Ph.D.: Professor of Pharmacy Administration and former Dean of the School of Pharmacy at Southern Illinois University Edwardsville (SIUE), Edwardsville, Illinois, USA. Dr. Gupchup’s research focuses on behavioral and psychological aspects of healthcare professions, sociobehavioral pharmacy, and psychometric evaluation of workplace well-being.
• Alan P. Wolfgang, Ph.D.: Formerly Associate Professor of Pharmacy Administration at the School of Pharmacy and Pharmacal Sciences, Purdue University, West Lafayette, Indiana, USA. Dr. Wolfgang’s scholarship contributed significantly to the assessment of stress, locus of control, and career satisfaction among healthcare practitioners.

Purpose

The primary purpose of the Modified Work Locus of Control Scale (MWLOCS) is to provide an empirically sound, domain-specific measurement tool capable of evaluating personal agency and perceived environmental contingency within occupational contexts. While generalized locus of control measures—most notably the Internal-External Locus of Control Scale developed by Julian Rotter (1966)—have contributed substantially to personality psychology, their capacity to predict specific organizational behaviors has historically been constrained by their broad, cross-situational formulation.

Research across industrial-organizational psychology demonstrates that domain-specific measures exhibit superior predictive validity when assessing task-related behaviors, job performance, workplace well-being, and occupational health. Spector (1988) formulated the original 16-item Work Locus of Control Scale to capture these workplace-specific dynamics. Recognizing the necessity of refining item performance, reducing cultural and linguistic ambiguity, and optimizing measurement across specialized professions (such as healthcare clinicians, corporate managers, and specialized service employees), Gupchup and Wolfgang (1997) introduced the 20-item MWLOCS. The adaptation refines operational definitions of work outcomes, focusing explicitly on tangible organizational contingencies such as salary increments, promotions, task execution, supervisor dynamics, and institutional politics.

In applied organizational diagnostics and clinical occupational counseling, the MWLOCS serves several critical functions:

• Occupational Stress and Burnout Assessment: Employees exhibiting an external locus of control typically report higher susceptibility to emotional exhaustion, depersonalization, and role ambiguity. Identifying externalized attributional tendencies enables tailored cognitive-behavioral interventions and stress-resilience training.
• Leadership Development and Talent Management: Internal work locus of control is strongly correlated with proactive personality, transformational leadership potential, and self-directed problem-solving. Human resource professionals utilize the MWLOCS to assess autonomy orientation and adaptive coping among leadership candidates.
• Job Design and Person-Organization Fit: The scale assists organizational psychologists in evaluating whether an employee’s perceived control aligns with the structural latitude, autonomy, and decision-making latitude afforded by their specific occupational role.
• Academic and Empirical Research: The instrument provides organizational researchers with a psychometrically validated measure for testing complex structural equation models, including mediation and moderation analyses involving workplace heterosexism, discrimination, turnover intentions, and counterproductive work behaviors (Lipka, 2010).

Psychological Construct

Locus of control represents an enduring generalized expectancy regarding the causal relationship between one’s behavior and subsequent environmental outcomes. Within the occupational context, the MWLOCS operationalizes this construct across two primary conceptual axes: Internal Work Locus of Control and External Work Locus of Control, the latter of which frequently bifurcates into the domains of Powerful Others and Chance/Luck.

1. Internal Work Locus of Control

Internal work locus of control reflects the generalized expectation that workplace outcomes—such as compensation increases, career advancement, project success, and interpersonal influence—are directly contingent upon one’s own actions, effort, strategic planning, and personal competencies. Employees with high internal work locus of control conceptualize the professional environment as malleable and responsive to proactive initiative. For instance, Item 1 (“My job is what I make of it”) and Item 19 (“When I get what I want on a job, it’s usually because I worked hard for it”) embody this core conviction. Individuals scoring high in internality demonstrate heightened intrinsic motivation, greater persistence in the face of workplace obstacles, active rather than passive coping mechanisms, and an increased likelihood of challenging unfavorable institutional decisions (exemplified by Item 4: “If I were unhappy about a decision made by my boss, I would do something about it”).

2. External Work Locus of Control

External work locus of control denotes the belief that organizational occurrences are predominantly uncoupled from personal competence and effort, being instead dictated by external environmental forces. Within psychometric literature, externality is typically partitioned into two substantive sub-dimensions:

• Powerful Others (Relational Patronage & Organizational Politics): This facet represents the belief that organizational rewards, promotions, and career survivability are governed by authority figures, nepotism, institutional elites, and relational networks rather than objective merit. Exemplified by Item 8 (“In order to get a really good job I would need to have family members or friends in high places”), Item 10 (“When it comes to landing a really good job, who I know is more important than what I do”), and Item 17 (“Although I might have the necessary abilities, I will not be given leadership responsibilities without appealing to those in positions of power”), this dimension captures perceived systemic bias and institutional power differentials.
• Chance, Luck, and Fatalism: This facet captures the belief that occupational advancement, monetary recognition, and daily work outcomes are essentially random or governed by serendipitous timing. Items such as Item 5 (“Getting the job I want is a matter of luck”), Item 6 (“Getting a salary raise is primarily a matter of good fortune”), and Item 18 (“It’s not always wise for me to plan ahead on the job because things turn out to be a matter of good or bad fortune”) measure this fatalistic perspective, which often manifests behaviorally as learned helplessness, lower aspirational goal setting, and organizational disengagement.

Theoretical Framework

The theoretical architecture of the MWLOCS is rooted in Social Learning Theory, formulated by Julian B. Rotter (1954, 1966). Rotter posited that the potential for a specific behavior to occur in a given psychological situation is a function of the expectancy that the behavior will lead to a particular reinforcement and the reinforcement value of that outcome:

Behavior Potential = f(Expectancy & Reinforcement Value)

Expectancy is shaped not only by specific prior experiences in identical settings but also by generalized expectancies that transcend situations. Rotter designated locus of control as a fundamental generalized expectancy regarding whether reinforcement is internally controlled through personal action or externally controlled through fate, chance, or powerful others. However, Rotter recognized that when individuals operate within highly codified, familiar social systems—such as structured work environments—generalized expectancies yield predictive power to domain-specific expectancies.

Building upon Rotter’s conceptualization, Paul E. Spector (1982, 1988) introduced the construct of work locus of control to address the organizational domain directly. Spector asserted that occupational behavior cannot be adequately modeled by broad life-attitude inventories because the workplace operates under unique contractual, social, and hierarchical constraints. Work locus of control operates within the framework of Albert Bandura’s social cognitive theory, specifically distinguishing between outcome expectancies (locus of control: whether actions lead to outcomes) and efficacy expectancies (self-efficacy: whether one has the capability to perform the actions).

Furthermore, the MWLOCS interfaces directly with the Job Demands-Control (JDC) Model developed by Robert Karasek (1979). Karasek demonstrated that high job demands produce psychological strain primarily when employees experience low decision latitude and perceived lack of control. The MWLOCS acts as a psychological buffer: an internal work locus of control amplifies the perception of control latitude, buffering against physical and emotional exhaustion, whereas an external orientation heightens vulnerability to occupational stressors by reinforcing appraisals of helplessness (Lazarus & Folkman, 1984).

Validity

The psychometric validity of the Modified Work Locus of Control Scale has been established through construct, convergent, discriminant, and criterion-related validation studies across multiple occupational cohorts, including clinical pharmacists, corporate personnel, and diverse employee samples facing workplace stressors (Gupchup & Wolfgang, 1997; Lipka, 2010).

1. Construct and Factorial Validity

Construct validity was confirmed through both exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). Factor analytic investigations demonstrate that the 20 items successfully isolate variance attributable to personal efficacy versus systemic external constraints. In Gupchup and Wolfgang’s validation study, items consistently demonstrated high factor loadings (predominantly > .40) on their hypothesized latent dimensions, confirming that the scale accurately captures the underlying multidimensional theoretical framework.

2. Convergent Validity

The MWLOCS demonstrates robust convergent validity against established psychometric measures of personal agency, self-concept, and occupational attitudes:

• Generalized Locus of Control: Demonstrates statistically significant positive correlations with Rotter’s I-E Scale (r values typically ranging between .45 and .60), indicating shared construct space while validating the MWLOCS’s added domain-specific variance.
• Core Self-Evaluations (CSE): Correlates positively with generalized self-efficacy (r = .48 to .58) and self-esteem (r = .38 to .46), while exhibiting strong inverse correlations with generalized neuroticism.
• Proactive Personality: Positively correlated with proactive behavioral orientations (r = .42 to .52), reinforcing the construct definition that internal work locus of control fuels active occupational initiative.

3. Discriminant Validity

Discriminant validity is supported by low to negligible correlations with constructs conceptually unrelated to control beliefs, such as cognitive ability (r < .10) and social desirability bias (r values typically between -.08 and .12), confirming that respondents’ scores reflect genuine attributional styles rather than standard impression management tendencies.

4. Criterion-Related and Predictive Validity

Empirical studies demonstrate that the MWLOCS is a strong predictor of critical workplace attitudes and behaviors:

• Job Satisfaction: Internal work locus of control is consistently associated with higher overall job satisfaction (r = .35 to .48), whereas an external orientation correlates with dissatisfaction and cynicism.
• Occupational Stress and Burnout: Gupchup and Wolfgang (1997) observed significant relationships between external locus of control and heightened job-related stress among practicing pharmacists. Similarly, Lipka (2010) demonstrated that individuals scoring higher in external work locus of control manifested significantly greater psychological distress and turnover intentions when exposed to adverse workplace environments and organizational heterosexism.
• Organizational Commitment and Performance: Internality predicts heightened affective organizational commitment (r = .30 to .42) and supervisor-rated contextual performance, while externality reliably predicts withdrawal behaviors, absenteeism, and intent to leave.

Reliability

The Modified Work Locus of Control Scale exhibits high psychometric reliability across diverse occupational populations, demonstrating robust internal consistency and temporal stability.

1. Internal Consistency

In the foundational investigation conducted by Gupchup and Wolfgang (1997) using a sample of 272 licensed pharmacists, the MWLOCS demonstrated high internal consistency reliability. For the total scale (scored in the direction of externality), Cronbach’s alpha was reported at α = .82. Subsequent empirical evaluations across varied organizational settings have mirrored these findings:

• Overall Scale Consistency: Alpha coefficients reliably range from .80 to .86.
• Internal Subscale: Cronbach’s alpha typically ranges from .75 to .83 across 10 items.
• External Subscale: Cronbach’s alpha ranges from .78 to .85 across 10 items.
• McDonald’s Omega (ω): Composite reliability evaluations yield omega coefficients between .81 and .87, confirming that the scale retains strong structural reliability when tau-equivalence assumptions are relaxed.

2. Test-Retest Reliability and Temporal Stability

Temporal stability assessments over intervals of four to eight weeks show test-retest reliability coefficients ranging between r = .72 and r = .81. These results confirm that while the MWLOCS reflects an enduring personality-based attributional style, it maintains sufficient situational sensitivity to register significant shifts resulting from structural job redesign, professional empowerment programs, or prolonged exposure to institutional disempowerment.

3. Standard Error of Measurement (SEM)

The standard error of measurement across standardized administrations averages approximately 3.2 to 3.8 score points on the cumulative scale, providing practitioners with a reliable confidence band for individual-level diagnostic profiling and clinical-occupational decision-making.

Factor Analysis

The internal dimensionality of the MWLOCS has been rigorously evaluated utilizing both exploratory (EFA) and confirmatory (CFA) analytic procedures.

1. Exploratory Factor Analysis (EFA)

Initial exploratory factor analyses employing principal axis factoring and principal components analysis with oblique (Promax) and orthogonal (Varimax) rotations consistently reveal a strong two-factor or three-factor structure:

• Two-Factor Solution: The classic two-factor solution isolates an Internal Factor and an External Factor. The 10 positively worded internal items (Items 1, 2, 3, 4, 7, 11, 14, 15, 16, and 19) load cleanly onto Factor 1 (loadings ranging from .42 to .74). The 10 external items (Items 5, 6, 8, 9, 10, 12, 13, 17, 18, and 20) load cleanly onto Factor 2 (loadings ranging from .40 to .78). Cross-loadings are generally minimal (< .25).
• Three-Factor Solution: In higher-granularity analyses, the external dimension separates cleanly into Powerful Others (Items 8, 10, 12, 15 [reverse], 17) and Chance/Luck (Items 5, 6, 9, 13, 18, 20), aligning closely with Hanna Levenson’s (1981) tripartite model of locus of control.

2. Confirmatory Factor Analysis (CFA)

In structural equation modeling analyses (such as those documented by Lipka, 2010), confirmatory factor models testing a bidimensional structure demonstrate satisfactory model fit indices across independent occupational samples. Typical fit metrics include:

• Relative Chi-Square (χ²/df): Values ranging from 1.65 to 2.18, indicating acceptable parsimony.
• Comparative Fit Index (CFI): Ranging from .91 to .95, surpassing the conventional .90 threshold for acceptable structural fit.
• Tucker-Lewis Index (TLI): Ranging from .90 to .94.
• Root Mean Square Error of Approximation (RMSEA): Values between .048 and .062 (with 90% confidence intervals within acceptable boundaries < .08), indicating close structural approximation.
• Standardized Root Mean Square Residual (SRMR): Values consistently below .06.

These empirical findings affirm that the 20 items of the MWLOCS reflect a stable latent structure that withstands rigorous psychometric evaluation across varied professional disciplines.

Instrument / Measurement Tool

The Modified Work Locus of Control Scale is a standardized, paper-and-pencil or computer-administered self-report inventory designed for rapid administrative implementation in research, clinical, and organizational settings.

• Instrument Type: Self-report psychological scale / psychometric inventory.
• Construct Assessed: Work Locus of Control (Internal vs. External / Chance / Powerful Others).
• Total Number of Items: 20 items.
• Response Scale: 5-point Likert-type scale scored as follows:
  • 1 = Strongly disagree
  • 2 = Disagree
  • 3 = Neither disagree nor agree
  • 4 = Agree
  • 5 = Strongly agree
• Administration Time: Approximately 5 to 8 minutes.
• Target Population: Adult employees, managers, professionals, and clinical occupational counseling clients across diverse workplace settings.
• Subscale Item Composition:
  • Internal Items (10 items): Item 1, Item 2, Item 3, Item 4, Item 7, Item 11, Item 14, Item 15, Item 16, Item 19.
  • External Items (10 items): Item 5, Item 6, Item 8, Item 9, Item 10, Item 12, Item 13, Item 17, Item 18, Item 20.
• Scoring Models and Protocols:
  • Protocol A: Total Continuous Externality Score (Standard Gupchup & Wolfgang Scoring): To compute a single continuous composite score where higher values reflect greater external locus of control, reverse-score the 10 internal items (i.e., transform response values such that 1 becomes 5, 2 becomes 4, 3 remains 3, 4 becomes 2, and 5 becomes 1). The 10 external items retain their original scores (1 to 5). Sum all 20 items. Possible composite scores range from 20 to 100. Lower scores (e.g., 20–50) signify strong internal control beliefs, mid-range scores (51–69) represent balanced or ambiguous control orientations, and higher scores (70–100) denote high externality.
  • Protocol B: Independent Subscale Scoring: Compute separate mean or sum scores for the Internal Work Locus of Control subscale (summing Items 1, 2, 3, 4, 7, 11, 14, 15, 16, 19 without reversal; range 10–50) and the External Work Locus of Control subscale (summing Items 5, 6, 8, 9, 10, 12, 13, 17, 18, 20; range 10–50). This approach permits profile analysis and distinct modeling of agency versus external constraints.

Permissions & Fee and Test Year

The Modified Work Locus of Control Scale was developed and published in 1997 by Gireesh V. Gupchup and Alan P. Wolfgang in the journal Psychological Reports. The instrument was developed within an academic research context and is widely accessible for non-commercial educational, scientific, and dissertation research without the assessment of royalty fees, provided that standard academic attribution is maintained.

Investigators and organizations intending to use the scale must adhere to standard ethical guidelines:

• Academic and Non-Commercial Research: Freely usable under fair-use principles in academic dissertations, university studies, and non-funded scholarly investigations. Formal citation of the original validation paper (Gupchup & Wolfgang, 1997) is required.
• Commercial, Consulting, and For-Profit Applications: Commercial organizations seeking to integrate the MWLOCS into proprietary testing platforms, commercial pre-employment screening batteries, or monetization programs should seek formal permission from the copyright holders or original authors.
• Inquiries: Inquiries regarding extended psychometric adaptations may be addressed to Dr. Gireesh V. Gupchup through Southern Illinois University Edwardsville (SIUE).

References

• Bandura, A. (1997). Self-efficacy: The exercise of control. W. H. Freeman and Company.
• Gupchup, G. V., & Wolfgang, A. P. (1997). A modified work locus of control scale: Preliminary investigation of reliability and validity in a sample of pharmacists. Psychological Reports, 81(2), 640–642. https://doi.org/10.2466/pr0.1997.81.2.640
• Karasek, R. A. (1979). Job demands, job decision latitude, and mental strain: Implications for job redesign. Administrative Science Quarterly, 24(2), 285–308. https://doi.org/10.2307/2392498
• Lazarus, R. S., & Folkman, S. (1984). Stress, appraisal, and coping. Springer Publishing Company.
• Levenson, H. (1981). Differentiating among internality, powerful others, and chance. In H. M. Lefcourt (Ed.), Research with the locus of control construct (Vol. 1, pp. 15–63). Academic Press. https://doi.org/10.1016/B978-0-12-443201-7.50006-3
• Lipka, P. (2010). Sexual minorities in the workplace: An examination of individual differences that affect responses to workplace heterosexism (Doctoral dissertation, Clemson University). Clemson University TigerPrints, Paper 539. http://tigerprints.clemson.edu/cgi/viewcontent.cgi?article=1539&context=all_dissertations
• Ng, T. W., Sorensen, K. L., & Eby, L. T. (2006). Locus of control at work: A meta-analysis. Journal of Organizational Behavior, 27(8), 1057–1087. https://doi.org/10.1002/job.416
• Rotter, J. B. (1954). Social learning and clinical psychology. Prentice-Hall. https://doi.org/10.1037/11382-000
• Rotter, J. B. (1966). Generalized expectancies for internal versus external control of reinforcement. Psychological Monographs: General and Applied, 80(1), 1–28. https://doi.org/10.1037/h0092976
• Spector, P. E. (1982). Behavior in organizations as a function of employee’s locus of control. Psychological Bulletin, 91(3), 482–497. https://doi.org/10.1037/0033-2909.91.3.482
• Spector, P. E. (1988). Development of the Work Locus of Control Scale. Journal of Occupational Psychology, 61(4), 335–340. https://doi.org/10.1111/j.2044-8325.1988.tb00470.x

Items of the Scale