Effects of different screen sizes on stress measurement

Influence of Screen Sizes on Responses to Visual Analog Scales of Stress

University Hospital, Clermont-Ferrand · NCT04040608

This study tests how different screen sizes affect people's stress levels as measured by a simple scale and looks at how these responses change over a week.

Quick facts

Study typeObservational
Enrollment200 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity Hospital, Clermont-Ferrand (other)
Locations1 site (Clermont-Ferrand)
Trial IDNCT04040608 on ClinicalTrials.gov

What this trial studies

This observational study investigates how varying screen sizes affect responses to visual analog scales (VAS) used for measuring stress. Participants will complete the same VAS on four different screen types (24-inch screen, laptop, tablet, smartphone) and on paper, with saliva samples collected for biomarker analysis. The study also aims to assess the variability of responses over a week and explore the relationship between work perception, work addiction, and stress biomarkers. The goal is to better understand the impact of digital interfaces on stress assessment.

Who should consider this trial

Good fit: Ideal candidates for this study are adult individuals who can understand and respond to basic questions.

Not a fit: Patients with cognitive disorders or those who refuse to participate may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve the accuracy of stress assessments conducted via digital platforms.

How similar studies have performed: This approach is novel, as the influence of screen sizes on VAS responses has not been previously studied.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adult persons

Exclusion Criteria:

* Refusal to participate in the study
* Unable to answer basic questions (difficulties understanding, cognitive disorders…)

Where this trial is running

Clermont-Ferrand

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Volunteers, visual analog scale, stress

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.