An observational study in Chronic Pain, sponsored by Bilecik Seyh Edebali Universitesi. Not yet recruiting at 1 site in Turkey (Türkiye). Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-06.
Sponsored by Bilecik Seyh Edebali Universitesi · Observational
This study will translate and culturally adapt the Patients' Endorsement of a Biopsychosocial Model of Chronic Pain Scale (PEB) into Turkish and evaluate how well and consistently it measures the views of adults with chronic pain. The study will take place at the Physical Medicine and Rehabilitation outpatient clinic of Bilecik Training and Research Hospital. At least 200 adults will be included in the main sample. Participants will complete questionnaires that are expected to take 10 to 15 minutes. An additional 20 people who will not be included in the main sample will take part in a pilot assessment. Fifty participants from the main sample will complete the PEB Scale again after two weeks. No treatment or intervention will be assigned.
This is a methodological, cross-sectional study with a prospective test-retest component. The Turkish cross-cultural adaptation will include independent forward translations, reconciliation of the translations, independent back-translations, comparison with the original scale, and review of discrepancies. Seven experts in relevant fields will assess the clarity, cultural suitability, and content relevance of the items. The revised form will be pilot-tested with 20 adults with chronic pain who will not be included in the main sample.
The main psychometric evaluation will include at least 200 adults with chronic pain. Exploratory and confirmatory factor analyses will be used to evaluate the scale structure. Criterion-related validity will be assessed through correlations with pain beliefs, pain-related self-efficacy, pain intensity, interference with daily activities, and pain-related distress. Internal consistency and item characteristics will also be examined. Measurement invariance across selected participant groups will be evaluated using multigroup confirmatory factor analysis.
For test-retest reliability, 50 participants from the main sample whose clinical condition is not expected to change substantially will complete the PEB Scale again after two weeks. Agreement between the two measurements will be assessed using the intraclass correlation coefficient and its 95% confidence interval.
2,930 studies on the registry are indexed under Chronic Pain; 701 are open to participants now.
This study's planned enrollment of 220 is above the median of 126 across 688 observational studies indexed under Chronic Pain.
Browse Chronic Pain studies →Bilecik Seyh Edebali Universitesi is the lead sponsor of 57 studies on the registry; 22 are open to participants now.
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Adults aged 18 years or older with physician-diagnosed chronic pain lasting or recurring for more than 3 months who receive follow-up or treatment at the Physical Medicine and Rehabilitation outpatient clinic of Bilecik Training and Research Hospital, Türkiye.
Exclusion Criteria:
Adults aged 18 years or older with physician-diagnosed chronic pain lasting or recurring for more than 3 months. At least 200 participants will be included in the main sample, and an additional 20 participants will take part in the pilot assessment. Fifty participants from the main sample will complete the PEB Scale again after two weeks. No intervention will be assigned.
Construct validity and internal consistency of the Turkish PEB Scale
The 11-item, single-factor Turkish PEB Scale will be evaluated using exploratory and confirmatory factor analyses. Internal consistency will be assessed using Cronbach's alpha and corrected item-total correlations. Higher scores indicate stronger endorsement of a biopsychosocial model of chronic pain.
Time frame: At the initial assessment (single administration)
Test-retest reliability of the Turkish PEB Scale
Fifty participants from the main sample will complete the PEB Scale again 2 weeks after the first assessment. Agreement between the two scores will be assessed using the intraclass correlation coefficient (ICC) and 95% confidence interval.
Time frame: At the initial assessment and 2 weeks later
Criterion-related validity of the Turkish PEB Scale
Correlations will be evaluated between Turkish PEB Scale scores and scores on the Pain Beliefs Questionnaire, the University of Washington Pain-Related Self-Efficacy Scale Short Form, and 0-10 numeric rating scale scores for pain intensity, interference with daily activities, and pain-related distress. Numeric rating scale responses refer to the previous week.
Time frame: At the initial assessment
Plan to share: No — No individual participant data will be shared with other researchers. The study involves sensitive health information, and participant confidentiality will be protected. Study findings will be reported in aggregate.
No publications or documents are linked to this record.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is not yet recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.
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Bilecik Seyh Edebali Universitesi