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Construct validity of a work environment impact scale.

R A Corner1, G Kielhofner2, F L Lin2

  • 1University of Illinois at Chicago, Department of Occupational Therapy 1919 W. Taylor Chicago, IL, USA, 60612.

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Summary
This summary is machine-generated.

The Work Environment Impact Scale (WEIS) effectively measures construct validity and internal consistency for workers with psychiatric disabilities, offering clinically relevant data for accommodations and interventions.

Keywords:
Occupational environmentPsychiatric disabilitiesReasonable accomodations

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Area of Science:

  • Psychology
  • Occupational Health
  • Psychiatry

Background:

  • The Work Environment Impact Scale (WEIS) is a new assessment tool.
  • Psychiatric disabilities can impact an individual's work environment.
  • Validating new assessment tools is crucial for effective intervention.

Purpose of the Study:

  • To examine the construct validity and internal consistency of the WEIS.
  • To determine if the WEIS is a suitable instrument for assessing the work environment of individuals with psychiatric disabilities.
  • To evaluate the WEIS's ability to capture aspects of performance, satisfaction, and well-being.

Main Methods:

  • Rasch analysis was applied to data from 20 individuals with psychiatric disabilities.
  • Specific criteria (MNSQ > 1.3 and t > 2.0) were used to identify unexpected person/item responses.
  • Items with MNSQ < 0.7 and t < -2.0 were examined for instrument precision enhancement.

Main Results:

  • The WEIS demonstrated appropriate validity and internal consistency for the target population.
  • Item hierarchy aligned with existing literature on environmental press and affordance for this group.
  • The WEIS items formed a uni-dimensional construct, with most individuals fitting the Rasch model.
  • Three items required revision to improve measurement quality.

Conclusions:

  • The WEIS is a valid and appropriate instrument for assessing the work environment of individuals with psychiatric disabilities.
  • The scale provides clinically relevant information for planning interventions and reasonable accommodations.
  • The findings support the use of the WEIS to understand the relationship between worker well-being and their occupational environment.