Validity of the Turkish Situational Vertigo Questionnaire
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: validity and reliability.
- Who it may be relevant to
- Registry conditions: Vestibular Pathology. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Turkey (Türkiye)
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Turkish Adaptation of the Situational Vertigo Questionnaire: Validity and Reliability Study
Overview
This study was planned to examine the validity and reliability of the Turkish version of the Situational Vertigo Questionnaire (SVQ), which is used to evaluate dizziness symptoms frequently seen in vestibular pathologies and triggered by visual or environmental stimuli. The research is designed as a methodological scale adaptation and psychometric evaluation study. The study plans to include individuals aged 18 and over who can read and understand Turkish and have complaints of situational dizziness. The Turkish adaptation process of the SVQ will be carried out using the back-and-forth translation method; a pilot application will be conducted after ensuring linguistic and cultural equivalence. For the psychometric evaluation, the sample size is planned to be at least 10 times the number of items, and participants will be asked to complete the SVQ, as well as the Dizziness Handicap Inventory (DHI), Vertigo Symptom Scale (VSS), and Visual Analog Scale (VAS). To evaluate test-retest reliability, a subgroup of participants will be re-administered the SVQ after 7 days. No invasive procedures will be performed on participants during the research; only survey forms will be used. Written informed consent will be obtained from all participants, and data will be coded and analyzed in accordance with confidentiality principles. It is expected that the findings of this study will contribute to the literature by establishing a valid and reliable measurement tool in Turkish for the evaluation of situational dizziness symptoms and will support clinical evaluation processes.
Interventions
- Other validity and reliability
The Turkish adaptation of the Situational Vertigo Questionnaire (SVQ) will follow internationally accepted cross-cultural adaptation guidelines using a forward-backward translation method. Two independent bilingual translators will translate the original English version into Turkish, producing two versions that will be compared and synthesized into a preliminary Turkish form. This version will then be back-translated into English by two native English speakers blinded to the original scale. A co
Primary outcome measures
- Situational Vertigo Questionnaire (SVQ) [Time frame: Baseline and 7-14 days follow-up]
Secondary outcome measures (2)
- Dizziness Handicap Inventory (DHI) [Time frame: Baseline and 7-14 days follow-up]
- Vertigo Symptom Scale (VSS) [Time frame: Baseline and 7-14 days follow-up]
Eligibility 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
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Other
Study locations
Turkey (Türkiye) · 1 center
- Güneşli Erdem Hastanesi — Bağcılar
Identifiers
NCT: NCT07468864 · SVQ Validity and Reliability