Description

The Work Environment Scale (WES-90) was developed by Rudolf H. Moos to assess the social and organizational climate of workplaces. It measures employees’ perceptions of interpersonal relationships, opportunities for professional development, organizational functioning, and physical working conditions.

The original WES was not developed exclusively for healthcare professionals, although it has been widely used and adapted in hospitals and other healthcare settings. The term “WES Health” should therefore be used only when referring to a specific, documented healthcare adaptation.

Structure

The scale comprises 90 statements organized into ten subscales, with nine items in each subscale. These subscales are grouped into three broader dimensions.

Relationship Dimensions

Involvement assesses employees’ interest in and commitment to their work. Coworker Cohesion examines the extent of mutual support, cooperation, and friendliness among employees. Supervisor Support measures the degree of encouragement, recognition, and assistance provided by supervisors.

Personal Growth and Goal Orientation Dimensions

Autonomy assesses the degree to which employees are encouraged to make decisions and take initiative. Task Orientation measures the emphasis placed on planning, efficiency, and task completion. Work Pressure evaluates the extent to which workload, time pressure, and urgency dominate the workplace.

System Maintenance and System Change Dimensions

Clarity assesses how clearly roles, rules, policies, and workplace expectations are communicated. Control measures the extent to which management emphasizes rules, supervision, and employee monitoring. Innovation evaluates the encouragement of new ideas, variety, and alternative working practices. Physical Comfort examines the degree to which the physical surroundings contribute to a pleasant and functional workplace.

Forms of the Scale

The WES is available in different forms. The Real Form evaluates employees’ perceptions of their current workplace. The Ideal Form assesses the type of working environment employees would prefer, while the Expectations Form examines their expectations of a new or future workplace.

Comparing the real and ideal forms can identify discrepancies between employees’ current experiences and their preferred working conditions, thereby supporting organizational planning and intervention.

Purpose

The WES-90 aims to provide a systematic assessment of the psychosocial and organizational work environment. It can be used to investigate relationships between workplace climate and job satisfaction, organizational commitment, employee performance, occupational stress, turnover intentions, and burnout.

In healthcare settings, it may support the evaluation of teamwork, supervisor support, autonomy, workload, organizational clarity, innovation, and the physical working environment.

Administration and Scoring

In the original version, the 90 statements are answered using a dichotomous True/False response format rather than a five-point Likert scale. Following application of the official scoring key, each subscale produces a raw score ranging from 0 to 9.

Raw scores may be converted into standardized scores using the normative tables provided in the instrument’s manual. Categories such as “low,” “moderate,” and “high” should only be used when supported by appropriate normative or reference data.

Higher scores are not always interpreted as more favourable. Higher levels of Supervisor Support, Autonomy, Clarity, or Innovation may indicate positive characteristics, whereas high Work Pressure or Control may reflect a more demanding or restrictive environment. The subscales should therefore be interpreted separately and collectively as an organizational profile.

Data Analysis

Analysis may include descriptive statistics for each subscale, comparisons between occupational groups or organizational units, and evaluation of changes before and after an intervention.

Reliability should be examined separately for each subscale using internal-consistency indicators and, where possible, test–retest methods. The proposed structure may be evaluated through exploratory or confirmatory factor analysis. Construct validity can be investigated through associations with job satisfaction, burnout, organizational commitment, work engagement, and other relevant variables.

When comparing different occupational or cultural groups, measurement invariance should be examined before differences in mean scores are interpreted.

Reliability and Validity

The WES has been used in various occupational and organizational settings, providing evidence of reliability and construct, concurrent, and predictive validity. However, its psychometric adequacy should not be assumed automatically for every translation, population, or specialized adaptation.

The use of a Greek or healthcare-specific version requires documented translation and back-translation procedures, pilot testing, and renewed examination of reliability, factor structure, and measurement equivalence.

Limitations

The WES measures employees’ subjective perceptions and may therefore be affected by their current emotional state, overall job satisfaction, and recent organizational events. Furthermore, its dichotomous response format limits the degree to which respondents can express the intensity of their perceptions.

For a comprehensive organizational assessment, WES results should be combined with interviews, focus groups, objective organizational indicators, and other specialized instruments.

References

Karasek, R. A., & Theorell, T. (1990). Healthy work: Stress, productivity, and the reconstruction of working life. Basic Books.

Moos, R. H. (1981). Work Environment Scale manual. Consulting Psychologists Press.

Moos, R. H. (1994). Work Environment Scale manual: Development, applications, research (3rd ed.). Consulting Psychologists Press.

Moos, R. H. (2008). Work Environment Scale manual (4th ed.). Mind Garden.

Moos, R. H., & Insel, P. M. (1974). Work Environment Scale. Consulting Psychologists Press.