NCT04040608 Influence of Screen Sizes on Responses to Visual Analog Scales of Stress
| NCT ID | NCT04040608 |
| Status | Recruiting |
| Phase | — |
| Sponsor | University Hospital, Clermont-Ferrand |
| Condition | Volunteers |
| Study Type | OBSERVATIONAL |
| Enrollment | 200 participants |
| Start Date | 2021-03-02 |
| Primary Completion | 2028-03 |
Trial Parameters
Eligibility Fast-Check
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Brief Summary
Visual analog scales (VAS) are one of the most common tools used in questionnaires. VAS are validated for pain and stress for example on a horizontal, non-calibrated line of 100 mm, ranging from very low (0) to very high (100). Nowadays, most VAS are used on questionnaires on internet. However, the influence of screen sizes on responses to visual analog scales were never studied.
Eligibility Criteria
Inclusion Criteria: * Adult persons Exclusion Criteria: * Refusal to participate in the study * Unable to answer basic questions (difficulties understanding, cognitive disorders…)