Checking the Turkish Situational Vertigo Questionnaire for measuring situational dizziness
Official title: Turkish Adaptation of the Situational Vertigo Questionnaire: Validity and Reliability Study
Run by Istanbul Medipol University Hospital · NCT07468864 · Data updated 2026-11-12
This project will test whether the Turkish version of the Situational Vertigo Questionnaire reliably measures dizziness in adults whose symptoms are triggered by visual or environmental cues.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 3 (estimated) |
| Sponsor | Istanbul Medipol University Hospital Academic / other |
| Locations | 1 site (Bağcılar, Güneşli) |
| Status | Recruiting |
| Started | February 16, 2026 |
| Main results expected | March 2, 2026 |
| Study ends | February 20, 2027 |
| Registry record updated | March 13, 2026 |
| Trial ID | NCT07468864 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (18 and over) who can read and write Turkish, report dizziness triggered by visual or environmental stimuli, and have the mental capacity to consent (MMSE ≥24) are ideal candidates.
✕Probably not a fit
People without situational dizziness, those who cannot read Turkish, have significant cognitive impairment, recent vestibular surgery, or acute neurological disease, or who cannot travel to the study site are unlikely to benefit from participation.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
The study is a methodological adaptation and psychometric evaluation of the Situational Vertigo Questionnaire into Turkish using a back-and-forth translation process and a pilot application to ensure linguistic and cultural equivalence. For the psychometric phase, the plan is to recruit a sample size of at least ten times the number of questionnaire items and to collect responses on the SVQ alongside the Dizziness Handicap Inventory (DHI), Vertigo Symptom Scale (VSS), and a Visual Analog Scale (VAS). Test-retest reliability will be assessed by repeating the SVQ in a subset of participants, and statistical analyses will examine internal consistency, construct validity, and reliability. Inclusion criteria require adults (≥18) who read and write Turkish, have situational dizziness, and are cognitively able to consent (MMSE ≥24), while people with acute neurological disease, recent vestibular surgery, or severe cognitive/communication impairment are excluded.
Why it matters
Potential benefit: If successful, clinicians in Turkey would have a validated Turkish SVQ to more reliably measure and track situational dizziness symptoms.
How similar studies have gone: Previous language adaptations of vestibular symptom questionnaires using back-translation and psychometric testing have generally produced reliable and valid instruments, so this approach follows established methods.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Presence of dizziness triggered by visual or environmental stimuli * Able to read and write Turkish * Voluntary agreement to participate in the study * Having the mental capacity to give informed consent (Mini Mental State Scale score ≥ 24) Exclusion Criteria: * Individuals with severe cognitive impairment or communication difficulties * Acute neurological disease (stroke, acute MS relapse, etc.) * Having undergone vestibular surgery within the last 3 months
Where it's running
-
Güneşli Erdem Hastanesi
Bağcılar, Güneşli, Turkey (Türkiye) Recruiting
Study contacts
- Study coordinator: Ebru Sever, MsC, PT
- Email: ebru.sever@kocaelisaglik.edu.tr
- Phone: 05336824227
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.