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Related Experiment Video

Updated: Jul 8, 2026

Simulation of a Scaled Assembly Process with Collaboration of a Robotic Arm and Monitoring through a Vision System for Quality Control

Simulation of a Scaled Assembly Process with Collaboration of a Robotic Arm and Monitoring through a Vision System for Quality Control

Published on: August 29, 2025

JCQ scale reliability and responsiveness to changes in manufacturing process.

Angelo d'Errico¹, Laura Punnett, Judith E Gold

¹Department of Work Environment, University of Massachusetts Lowell, Lowell, Massachusetts, USA. angelo.derrico@epi.piemonte.it

American Journal of Industrial Medicine

|December 29, 2007

Summary

Test-retest reliability of the Job Content Questionnaire (JCQ) is adequate for stable job assignments and exposures. Changes in technology impacted job control but not demand, affecting scale reliability.

Related Experiment Videos

Last Updated: Jul 8, 2026

Simulation of a Scaled Assembly Process with Collaboration of a Robotic Arm and Monitoring through a Vision System for Quality Control

Simulation of a Scaled Assembly Process with Collaboration of a Robotic Arm and Monitoring through a Vision System for Quality Control

Published on: August 29, 2025

Area of Science:

Occupational Health
Psychosocial Work Environment
Ergonomics

Background:

Investigated the impact of technological changes on psychosocial exposures using the Job Content Questionnaire (JCQ).
Assessed the 5-year test-retest reliability of JCQ scales among automobile manufacturing workers.
Considered changes in job assignment and physical ergonomic exposures.

Purpose of the Study:

To describe the impact of production technology changes on self-reported psychosocial exposures.
To examine the test-retest reliability of JCQ scales considering job and ergonomic changes.

Main Methods:

Administered the JCQ to 790 workers at baseline and 519 at follow-up (387 common).
Analyzed demand and control score differences using Wilcoxon matched-pairs signed-rank test.
Evaluated reliability using intraclass correlation coefficient (ICC) and Spearman's rho.

Main Results:

Increased automation led to higher job control but unchanged psychological demand.
JCQ control scale reliability was low overall, but acceptable for workers with stable jobs.
Demand scale reliability was high only when physical ergonomic exposures remained consistent.

Conclusions:

Five-year test-retest reliability of self-reported psychosocial exposures is adequate for workers with stable job assignments and ergonomic exposures.
Job stability is crucial for reliable self-assessment of psychosocial work factors.